Polypectomy Recovery: Side Effects, Bleeding, and Aftercare
A polypectomy is a procedure used to remove a polyp, which is an abnormal growth that can form in areas such as the colon, stomach, uterus, cervix, nose, or bladder. Many people hear the word during a colonoscopy, when doctors remove colon polyps to test them and help reduce future cancer risk. The recovery process depends on where the polyp was removed, how large it was, how it was taken out, and whether sedation or anesthesia was used. For many patients, recovery is simple, but aftercare still matters.
Understanding polypectomy recovery can help you know which symptoms are expected and which ones may need medical attention. Mild cramping, bloating, light bleeding, soreness, or temporary fatigue can happen after the procedure. However, heavy bleeding, severe pain, fever, dizziness, weakness, or signs of infection should not be ignored. This article explains polypectomy recovery, possible side effects, bleeding concerns, and aftercare steps that can support safer healing.
What Is a Polypectomy?
A polypectomy is a medical procedure used to remove a polyp from the body. A polyp is an abnormal growth of tissue that can form in places such as the colon, stomach, uterus, cervix, bladder, or nose. Many polyps are benign, but some can become precancerous or cancerous over time, which is why doctors may recommend removing them and sending the tissue to a lab for testing.
One of the most common types is a colon polypectomy, which is often done during a colonoscopy. During the procedure, a doctor uses special tools to remove the polyp, sometimes with a wire loop, forceps, or heat-based technique. In many cases, the patient does not feel the removal because sedation or anesthesia is used, depending on the procedure.
A polypectomy can help diagnose abnormal tissue and may also reduce the risk of certain cancers, especially when precancerous colon polyps are removed early. Recovery depends on where the polyp was removed, how large it was, and the method used. Mild cramping, bloating, light bleeding, or soreness may happen afterward, but heavy bleeding, fever, severe pain, dizziness, or worsening symptoms should be checked by a healthcare provider.
Aftercare for Polypectomy Recovery: What Are the Immediate Post-Procedure Guidelines?
Immediate post-polypectomy guidelines focus on a triad of crucial elements: managed diet, restricted physical activity, and careful medication adherence to ensure the colon heals properly and to minimize the risk of complications like bleeding or perforation. Following these instructions, particularly in the first 24 to 72 hours, is paramount for a safe and smooth recovery period. To understand better, the following guidelines provide a detailed framework for your initial aftercare.
Immediate Post-Procedure Monitoring and Sedation Recovery
The immediate recovery period following a polypectomy begins in the post-anesthesia care unit. Once the physician completes the removal of the tissue growths from the lining of the colon, the medical team transfers you to a dedicated monitoring station. Registered nurses continuously track your physiological metrics, including blood pressure, cardiac rhythm, and oxygen saturation levels, while the sedative agents gradually clear from your system.
During this initial phase, it is entirely normal to experience a lingering sense of grogginess, mild abdominal cramping, or a feeling of bloating. This bloating is caused by the carbon dioxide or ambient air introduced during the endoscopic evaluation to expand the intestinal walls.
The medications used for conscious sedation or deep anesthesia, such as propofol or a combination of midazolam and fentanyl, heavily impact your cognitive processing, motor reflexes, and spatial coordination. Even if you wake up feeling completely alert, these pharmacological agents continue to impair your judgment and reaction times for up to twenty-four hours.
Consequently, operating a motor vehicle, navigating public transit alone, or signing legally binding documents is strictly prohibited. Medical facilities require a pre-arranged, responsible adult to escort you home and remain with you for the rest of the day to ensure your safety.
Dietary Reintroduction and Intestinal Healing
Allowing the mucosal lining of the bowel to heal requires a careful, phased approach to eating and drinking. The primary objective is to minimize physical friction against the raw tissue or internal clips where the polypectomy took place.
Initial Liquid Hydration Phase
For the first twelve to twenty-four hours, your intake should consist solely of clear liquids to keep you hydrated without putting stress on your digestive tract. This includes water, clear chicken or vegetable broth, apple juice, white grape juice, and plain gelatin.
It is vital to avoid any liquids or gelatin containing red, purple, or dark blue dyes. If these artificial pigments are unabsorbed, they can color your stool and be mistaken for active gastrointestinal bleeding during recovery.
Transitioning to Low-Residue Nutrition
Once your digestive system easily handles clear fluids without causing nausea or cramping, you can gradually introduce low-fiber, low-residue foods. High-fiber options add physical bulk to your stool, which can scrape against the healing surgical site and trigger delayed bleeding.
Your gastroenterologist will guide you on how long to follow this protective diet, which typically lasts from forty-eight hours to a full week depending on the size, type, and number of polyps removed.
Physical Activity Restrictions and Vascular Safety
Protecting the site of a recent polypectomy requires minimizing the physical pressure within your abdominal cavity. When a polyp is excised, the base is often treated with thermal electrocautery or secured with small, flexible metal clips to seal the blood vessels.
The Physiology of Delayed Bleeding: Any sudden increase in intra-abdominal pressure can put physical stress on these fragile vascular seals, potentially dislodging a clot or medical clip. This disruption can trigger a delayed post-polypectomy hemorrhage, an adverse event that can happen up to two weeks after the procedure.
To prevent this complication, strenuous exercise routines, including weightlifting, high-impact running, cycling, and intense abdominal workouts, are strictly forbidden for approximately seven days post-procedure. You must also avoid heavy lifting, which is generally defined as moving anything weighing more than ten to fifteen pounds.
A safe return to your normal routine should be gradual and deliberate. For the first twenty-four hours, prioritize complete rest by lounging on a bed or couch. Over the next few days, you can reintroduce light movement, such as short walks around your living space.
Always listen to your body’s signals; if you feel lightheaded, dizzy, or experience a sharp increase in pelvic or abdominal pain, stop the activity immediately, rest, and contact your healthcare provider.
Side Effects of Polypectomy Recovery: What Should You Expect After the Procedure?
After a polypectomy, you should expect to experience several common and mild side effects, such as bloating, gas, and minor cramping, while remaining vigilant for signs of serious complications like severe abdominal pain, fever, or heavy bleeding, which require immediate medical intervention.
Understanding the difference between what is normal and what is a red flag is essential for managing your recovery, reducing anxiety, and ensuring your safety. To begin, let’s differentiate between these two categories of post-procedure symptoms.
Expected Physiological Trajectories Post-Polypectomy
Following a polypectomy, the physical side effects you experience are usually mild, temporary, and directly tied to the mechanical nature of the endoscopic procedure. These symptoms generally peak within the first twenty-four hours and should steadily improve as the hours pass.
Insufflation Dynamics (Gas and Bloating)
During a colonoscopy, the endoscopist infuses carbon dioxide or ambient air into the intestinal tract to gently expand the folded tissue walls. This inflation is necessary to give the doctor a clear view of the mucosal lining and safely remove any polyps.
Even though the physician suctions out most of this gas at the end of the procedure, a small amount inevitably remains trapped in the loops of the colon. This trapped gas is the primary cause of post-procedure abdominal fullness, distinct bloating, and increased flatulence.
Engaging in light movement, such as walking slowly around your home or changing positions in bed, helps your intestines move the remaining gas out of your system, which quickly relieves the pressure.
Muscular Response and Minor Hemorrhage
The colon is wrapped in layers of smooth muscle. Manipulating the bowel during the procedure, combined with the stretching from the introduced gas, can trigger mild, intermittent abdominal cramping. This discomfort should feel very similar to ordinary gas pains and should fade as you rest.
Additionally, it is common to notice a tiny amount of blood during your first or second bowel movement after a polypectomy. This usually looks like small, bright red streaks mixed into the stool or a light smudge on the toilet paper.
This minimal oozing comes from the raw edge where the tissue growth was cut away from the intestinal wall. It should amount to less than a teaspoon of fluid and should stop on its own without any intervention.
Recognizing Red Flags and Serious Complications
While minor side effects are a normal part of healing, a polypectomy carries small but serious risks, such as a perforation (a tear in the structural wall of the colon) or a delayed post-procedural hemorrhage. Recognizing these critical warning signs early is essential for preventing dangerous, systemic issues.
[Critical Post-Polypectomy Red Flags]
│
┌───────────────────────────────┴───────────────────────────────┐
▼ ▼
[Structural & Infectious Signs] [Vascular & Bleeding Signs]
├── Constant, sharp, worsening pain ├── Passing multiple blood clots
├── Spike in body temp (>= 100.4°F) ├── Bowel movements of pure blood
└── Rigid, firm, or swollen abdomen └── Systemic dizziness or fainting
Signs of Perforation and Infection
A tear in the intestinal wall allows digestive contents to leak into the sterile abdominal cavity, which can cause severe inflammation or infection. The primary warning sign of this complication is severe, persistent abdominal pain. Unlike standard gas cramps that come and go, this pain is sharp, constant, and typically worsens if you move or press on your abdomen.
A body temperature spike of 100.4°F (38°C) or higher, especially when accompanied by chills, indicates that an infection may be developing.
Furthermore, if your abdomen becomes firm, rigid, or visibly swollen and tender to the touch, it may point to peritonitis—a serious inflammation of the abdominal lining. Continuous vomiting, particularly if it contains blood, is another major warning sign that requires immediate medical care.
Signs of Significant Bleeding
Delayed bleeding can happen up to two weeks after a polypectomy if an internal medical clip shifts or a cauterized blood vessel opens up. Significant bleeding is defined as passing a large volume of bright red blood, passing multiple dark blood clots, or experiencing bowel movements that consist entirely of blood.
When blood loss is substantial, it drains fluid from the cardiovascular system, causing systemic symptoms. These include sudden dizziness, lightheadedness, a racing heart rate, unusual physical weakness, or fainting.
Clinical Differentiation Matrix
To manage your recovery safely and avoid unnecessary anxiety, it helps to understand how normal healing symptoms differ from the warning signs of a serious complication.
| Symptom Category | Normal Post-Procedural Recovery | Potential Surgical Complication |
| Pain Profile | Mild, cramping discomfort that comes and goes, spreads across the abdomen, and improves after passing gas. | Sharp, severe, and constant pain that is often fixed in one spot and worsens with movement. |
| Bleeding Volume | Faint streaks of blood on toilet paper or minimal spotting (under a teaspoon) during the first bowel movement. | Heavy rectal bleeding, passing multiple dark clots, or passing pure blood into the toilet bowl. |
| Abdominal Texture | Soft, pliable abdomen that may feel slightly bloated or full but is not painful when pressed. | Firm, rigid, or tightly distended abdomen that feels highly tender to the touch. |
| Systemic Health | Normal body temperature, stable energy levels, and no signs of chills or dizziness. | High fever ($\ge 100.4^\circ\text{F}$), shaking chills, cold sweats, confusion, or a rapid pulse. |
| Symptom Timeline | Progressive Improvement: Symptoms steadily fade and typically disappear entirely within 24 to 48 hours. | Progressive Decline: Symptoms intensify, become more painful, or suddenly appear days after the procedure. |
Bleeding in Polypectomy Recovery: When Is Post-Procedure Bleeding a Concern?
Post-procedure bleeding after a polypectomy becomes a concern when it is heavy in volume (more than a few tablespoons), is continuous, involves passing blood clots, or is accompanied by systemic symptoms like dizziness, weakness, or a rapid heart rate, all of which indicate significant blood loss.
While a minor amount of initial bleeding is expected, understanding the threshold between normal and abnormal is critical for patient safety. Next, we will detail what constitutes a normal amount of bleeding and when to seek medical help.
Defining the Boundaries of Normal Post-Procedural Spotting
Following a polypectomy, experiencing a small, self-limiting amount of blood is an expected part of the standard healing process. Because removing a tissue growth leaves a small, raw wound on the mucosal lining of the colon, the passage of stool can temporarily irritate this delicate area.
Normal bleeding is minimal in volume, typically amounting to less than a single teaspoon of fluid. It usually shows up as faint red streaks mixed in with your first or second bowel movement, or as a small spot of blood on the toilet tissue after wiping.
This minor oozing should steadily decrease with each subsequent bowel movement and stop completely within forty-eight hours. To avoid false alarms, patients must strictly avoid red or purple-colored foods and liquids during early recovery, as these unabsorbed dyes can color the stool and look exactly like active bleeding.
Pathophysiological Mechanics: Immediate vs. Delayed Hemorrhage
Gastroenterologists categorize post-operative bleeding into two distinct phases based on how long after the polypectomy the bleeding occurs. Both types originate from the same raw site, but they are driven by entirely different mechanical causes.
Immediate Post-Polypectomy Bleeding
This type of hemorrhage occurs during the procedure itself or within the first twenty-four hours after completion. Bleeding that happens during the colonoscopy is managed immediately by the gastroenterologist using endoscopic tools.
The doctor can inject epinephrine to constrict local blood vessels, apply mechanical metal clips to clamp the vessel shut, or use thermal electrocautery to seal the tissue. If heavy bleeding begins after you are discharged but still within the twenty-four-hour window, it points to an inadequately sealed blood vessel and requires prompt medical attention.
Delayed Post-Polypectomy Bleeding
Delayed bleeding is a more common complication that typically surfaces between 3 and 14 days after a polypectomy. This delay is linked to the body’s natural tissue-healing timeline.
After a polyp is removed, a protective scab, known as an eschar, forms over the wound. As the underlying tissue repairs itself, this scab naturally sloughs off and passes out of the body.
In some cases, as the scab detaches, it can accidentally dislodge the underlying blood clot or pull on a healing blood vessel, triggering fresh bleeding. This risk is significantly higher if the removed polyp was larger than 1 centimeter or if the patient takes antiplatelet medications or blood thinners like aspirin, clopidogrel, or warfarin.
Clinical Response and Triaging Framework
Knowing when to monitor symptoms at home and when to seek emergency care is critical for your safety. The appropriate response depends on the volume of blood, how long it lasts, and whether you have any systemic symptoms.
Baseline Home Observation
You can safely monitor your recovery at home if you only notice a few faint streaks of blood during your first couple of bowel movements. If you feel otherwise healthy—with no abdominal pain, fever, or lightheadedness—this minor spotting confirms the polypectomy site is healing normally and does not require a call to the clinic.
When to Contact Your Gastroenterologist
You should call your doctor’s office for guidance if minor spotting continues beyond your second bowel movement or lasts longer than forty-eight hours. While this steady oozing may not be heavy, it means the wound is not closing as quickly as expected.
It is also vital to call if you take prescription blood thinners, as these medications make it harder for the body to form a stable clot at the surgical site.
When to Seek Immediate Emergency Care
You must go to the nearest emergency room or call 911 immediately if you experience heavy, continuous rectal bleeding that mimics a menstrual period, or if you pass multiple dark blood clots that turn the toilet water solid red.
When blood loss is substantial, it starves the cardiovascular system of fluid, causing systemic warning signs. Experiencing sudden dizziness, lightheadedness, confusion, a rapid heart rate, or a fainting spell means your body is in crisis and needs emergency medical intervention to stop the internal bleeding.
Hemorrhage Risk Matrix and Action Plan
| Bleeding Timeline | Observed Blood Characteristics | Systemic Signs | Required Clinical Action |
| Normal Healing (Hours 1 to 48) | Faint streaks of blood on toilet paper or minimal spotting under a teaspoon in size. | Excellent energy levels, stable pulse, and no abdominal pain or fever. | Continue routine home observation, stick to a low-residue diet, and avoid strenuous exercise. |
| Persistent Oozing (Beyond 48 Hours) | Constant, low-volume spotting that does not worsen but fails to stop entirely. | Normal vital signs, though the patient may feel mild anxiety or gas discomfort. | Contact your gastroenterologist’s office for advice and review your current medications. |
| Acute Complication (Days 1 to 14 post-polypectomy) | Heavy, continuous flow of bright red blood, or passing multiple dark blood clots. | Severe dizziness, extreme weakness, a racing pulse, cold sweats, or fainting. | Seek immediate emergency room care or call 911 to protect vital organ function. |
Other Factors Influence the Polypectomy Recovery Experience
Beyond the initial post-procedure instructions, a patient’s recovery is shaped by specific clinical details, including the nature of the polyps removed, the potential for uncommon complications, and the crucial long-term surveillance strategy that follows. Notably, these elements provide a more complete picture of the polypectomy journey, extending from immediate aftercare to future preventative health measures, ensuring patients are well-informed about every possible outcome and next step.
Risk Stratification based on Lesion Morphology
The complexity of your polypectomy recovery depends fundamentally on the structural size, number, and attachment depth of the tissue growths removed during the endoscopy.
[Polypectomy Lesion Size Risk Scaling]
│
┌───────────────────────────────┴───────────────────────────────┐
▼ ▼
[Small Polyps: < 1 cm] [Large Polyps: > 2 cm (EMR/ESD)]
├── Low vascular depth ├── Deep mucosal attachment layer
├── Swift, uneventful healing ├── Higher delayed bleeding risk
└── Immediate return to routine └── Requires 1-2 weeks strict limits
Small Lesions (Under 1 Centimeter)
When dealing with small polyps, the surgical wound left on the mucosal lining of the colon is very minor. Because these small tissue growths have shallow blood vessels, removing them carries a very low risk of complications.
Patients usually experience a swift recovery, with no restrictions on physical activity and an immediate return to their normal diet. Any post-procedure discomfort is typically limited to minor gas or bloating from the air used to expand the colon.
Large or Complex Lesions (Over 2 Centimeters)
Removing large, flat, or sessile polyps requires advanced endoscopic techniques, such as Endoscopic Mucosal Resection (EMR) or Endoscopic Submucosal Dissection (ESD). These procedures create a much larger wound that extends deeper into the layers of the colon wall.
To protect this larger surgical site and prevent delayed bleeding, physicians use stricter recovery protocols. Patients must follow a clear liquid diet for the first twenty-four hours before transitioning to soft, low-residue foods for several days.
Additionally, patients must strictly avoid heavy lifting, intense workouts, and air travel for one to two weeks. The changes in cabin pressure during air travel and the physical strain of lifting can increase pressure within the abdomen, which can dislodge protective medical clips or scabs and trigger a severe hemorrhage.
Post-Polypectomy Syndrome (Transmural Burn Injury)
Post-polypectomy syndrome (PPS), also known as post-polypectomy coagulation syndrome or transmural burn syndrome, is a rare but distinct clinical complication. It occurs when the electrical current used to cut and seal a large polyp inadvertently causes a deep thermal injury.
[Electrocautery Current] ──► Deep Thermal Penetration ──► Serosal Inflammation (PPS)
This condition is not a true perforation (a hole completely through the bowel wall). Instead, the intense heat from the cautery tool passes through the muscular layer of the colon, causing a localized burn on the outer surface. This burn irritates the peritoneum—the sensitive membrane lining the abdominal cavity—mimicking the symptoms of an actual tear.
Symptoms typically appear within hours up to five days after the polypectomy. The classic clinical triad includes:
-
Localized Pain: Intense, constant abdominal pain that does not improve after passing gas.
-
Systemic Pyrexia: A spike in body temperature or fever as the tissue inflames.
-
Leukocytosis: A significant rise in white blood cell counts on emergency lab tests.
Because these symptoms look identical to an absolute bowel perforation, patients need an immediate emergency evaluation. Physicians use an abdominal CT scan to tell the two conditions apart.
In post-polypectomy syndrome, the CT scan will show localized thickening and inflammation of the colon wall, but it will not show free air or fluid leaking into the abdominal cavity. Once a perforation is ruled out, PPS is managed conservatively without surgery using complete bowel rest, intravenous fluids for hydration, and broad-spectrum antibiotics to prevent secondary infections.
Structural Pathology and Long-Term Surveillance Intervals
A polypectomy is a vital preventative step in reducing the risk of colorectal cancer. The long-term follow-up plan is determined by the formal histopathology report, which analyzes the cellular structure of the removed tissue.
A pathologist evaluates the removed tissue to determine if the growths are benign or pre-cancerous, looking at specific cellular details:
Hyperplastic vs. Adenomatous Tissue
Hyperplastic polyps are benign growths that carry a very low risk of turning into cancer, meaning they rarely require accelerated follow-up tracking. Conversely, adenomatous polyps are pre-cancerous lesions that demand regular monitoring.
Within the adenoma family, the physical structure provides important clues. Growths with a tubular shape carry a lower risk, whereas a villous architecture or the presence of high-grade dysplasia indicates advanced cellular changes that require quicker follow-up.
Defining Your Follow-Up Timeline
Gastroenterologists use these pathology details, along with the total number of polyps found, to determine exactly when you should schedule your next colonoscopy:
| Pathological Findings | Risk Classification | Recommended Surveillance Interval |
| 1 to 2 small (< 1 cm) tubular adenomas with no cellular dysplasia. | Low Risk Profile | Return for a repeat colonoscopy in 7 to 10 years. |
| 3 to 10 adenomas, or any single adenoma larger than 1 cm. | Increased Risk Profile | Schedule a follow-up evaluation in 3 years. |
| Any adenoma displaying villous features or high-grade dysplasia. | High Risk Profile | Scheduled for a repeat screening within 3 years. |
| More than 10 distinct adenomas removed during a single procedure. | Severe/Multiplex Profile | Requires a repeat colonoscopy in less than 3 years and genetic testing for Lynch syndrome. |
Emergency Escalation Protocols
While mild gas, bloating, and minor spotting are normal parts of healing, certain red-flag symptoms point to a severe complication like a colonic tear or heavy bleeding. If you experience any of these symptoms, you must go to the nearest emergency room immediately:
Absolute Emergency Warning Signs:
Unrelenting Pain: Sharp, severe abdominal pain that does not improve after passing gas and worsens with any movement.
Abdominal Rigidity: A hard, firm, or board-like abdomen that causes severe pain when touched, pointing to active inflammation of the abdominal lining.
Heavy Hematedchezia: Passing a large volume of bright red blood or multiple large blood clots that turn the toilet water solid red.
Systemic Shock: Feeling suddenly dizzy, lightheaded, unusually weak, or experiencing cold, clammy skin and a racing pulse.
High Fever: A body temperature spike above 101°F (38.3°C), especially when accompanied by shaking chills.
Conclusion
Polypectomy recovery is usually manageable, especially when the polyp is small and removed during a routine procedure. Mild bleeding, bloating, cramps, gas, fatigue, or discomfort may occur, but these symptoms often improve within a short time.
More serious problems, such as heavy bleeding, infection, or a tear in the treated organ, are uncommon but need prompt medical care. After a polypectomy, patients should follow their doctor’s instructions about activity, diet, medications, warning signs, and follow-up results.
Read more: 7 Warning Signs of HHS Diabetes That Need Emergency Care
Frequently Asked Questions
1. What is a polypectomy?
A polypectomy is a medical procedure used to remove a polyp from the body. Polyps are abnormal tissue growths that may be benign, precancerous, or cancerous. The procedure is often done during colonoscopy, but polyps can also be removed from other areas, such as the uterus, cervix, stomach, or nose. Removed tissue is usually sent to a laboratory for testing.
2. What side effects are common after a polypectomy?
Common side effects after a polypectomy can include mild cramping, bloating, gas, soreness, light bleeding, or temporary fatigue. These symptoms are often related to the procedure itself, sedation, or the area where the polyp was removed. Some people may feel back to normal quickly, while others may need a few days of rest. Symptoms should gradually improve rather than become more severe.
3. Is bleeding normal after a polypectomy?
Light bleeding can be normal after a polypectomy, especially if the procedure involved removing a colon polyp or taking a biopsy. A small amount of blood may appear in the stool, on toilet paper, or in discharge, depending on the procedure site. Heavy bleeding, repeated bleeding, large clots, dizziness, or weakness should be treated as warning signs. Bleeding can sometimes happen days after the procedure, so aftercare instructions should be followed closely.
4. What should I avoid after a polypectomy?
What you should avoid after a polypectomy depends on the type and location of the procedure. Your doctor may advise avoiding heavy lifting, intense exercise, alcohol, driving after sedation, or certain medications that increase bleeding risk. Some patients may need diet changes for a short time, especially after gastrointestinal polyp removal. Always follow the instructions given by your healthcare team because recovery needs can vary.
5. When should I call a doctor after a polypectomy?
You should call a doctor if you have heavy bleeding, severe abdominal or pelvic pain, fever, chills, vomiting, fainting, weakness, or worsening symptoms. Black stools, large clots, trouble breathing, or signs of infection around a procedure site also need medical attention. Mild discomfort is common, but pain that becomes intense or persistent should not be dismissed. Seeking help early is safer when symptoms feel unusual or concerning.
Sources
Polypectomy: Definition, Preparation, Procedure & Recovery (Cleveland Clinic)
Colonoscopy (MedlinePlus)
Polyp Biopsy: MedlinePlus Medical Encyclopedia
Colonoscopy (Mayo Clinic)
Reducing Post-Polypectomy Bleeding Events in Patients Who Require Antithrombotic Agents (Mayo Clinic)
Colorectal Cancer Screening Tests (MedlinePlus Medical Test)
Colon Polyps: Symptoms, Causes, Types & Removal (Cleveland Clinic)
Risk Factors for Delayed Postpolypectomy Bleeding (PubMed)
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