Colonic and Gastric Polypectomy

Overview

Polypectomy is the removal of polyps — small growths on the inner lining of the digestive tract — during an endoscopic examination. Colonic polypectomy removes polyps from the colon (large intestine) during colonoscopy, and gastric polypectomy removes polyps from the stomach during gastroscopy (upper endoscopy).

Removing polyps serves two purposes: it provides tissue for the laboratory to examine, and it prevents certain polyps — particularly colon adenomas — from progressing to cancer over time. Most polyps are removed painlessly at the same session in which they are found, without any external incisions.

Polypectomy is a cornerstone of colorectal cancer prevention. This page is an educational overview only — it is not medical advice, and no outcome can be guaranteed.

Who May Need This

Polypectomy is needed by people found to have polyps during screening or diagnostic endoscopy, or during tests done for symptoms such as bleeding, anemia, or changes in bowel habit. Colon polyps are common with increasing age, and screening colonoscopy is designed partly to find and remove them.

People at higher risk — such as those with a family history of colorectal cancer or polyps, or hereditary polyp syndromes — may have polyps detected earlier and more often. The need for polypectomy is determined by a gastroenterologist based on what is seen during endoscopy.

When It May Be Recommended

Removal is generally recommended whenever a polyp is found, because its type and cancer risk cannot be known for certain by appearance alone. Small polyps are usually removed immediately; large, flat, or complex polyps may be scheduled for a dedicated advanced endoscopy session.

Occasionally, very tiny or clearly benign gastric polyps may simply be sampled and monitored. The final decision on what and when to remove always depends on individual evaluation during the procedure.

Diagnosis and Evaluation

Polyps are identified during colonoscopy or gastroscopy, and their size, shape, and surface pattern help the endoscopist judge risk and choose a removal technique. Removed tissue is sent for pathology, which determines whether a polyp is benign, precancerous, or contains cancer.

Before the procedure, your general health and medications are reviewed, especially blood thinners, which often need adjusting to reduce bleeding risk. For stomach polyps, tests for Helicobacter pylori infection or other causes may be done. A second opinion may be valuable for complex polyps.

Treatment Options

Removal techniques depend on the polyp. Small polyps are taken with biopsy forceps or a wire snare, with or without electrocautery. Larger or flat lesions may need endoscopic mucosal resection (EMR) or endoscopic submucosal dissection (ESD), which lift and remove the polyp more completely.

When a polyp is too large, deep, or suspicious to remove safely by endoscopy, surgery may be needed. For stomach polyps, treating an underlying cause (such as infection or acid-suppressing medication effects) is also part of management. Your endoscopist will choose the safest, most complete approach.

How It Is Performed

Polypectomy is performed during endoscopy, usually with sedation. A flexible scope with a camera is passed into the colon (through the anus) or the stomach (through the mouth). When a polyp is seen, instruments are passed through the scope to remove it — commonly a snare that loops around the base, sometimes with an electric current to cut and seal.

For larger polyps, fluid may be injected beneath the polyp to lift it away from the deeper wall before removal, reducing the risk of perforation. The site may be closed with clips if needed. The removed tissue is retrieved and sent to the laboratory. The procedure adds time to a standard endoscopy but requires no incisions.

Preparation

Preparation for colon polypectomy includes a bowel-cleansing preparation so the colon is clear, along with fasting beforehand. For gastric polypectomy, fasting is required. Blood thinners and some other medications are adjusted in advance under medical guidance to lower the risk of bleeding.

If travelling abroad, arrange for a companion (sedation means you cannot drive), plan a short in-country stay allowing for the procedure and pathology results, and bring your prior endoscopy and pathology reports so the specialist has your full history.

Benefits and Expected Goals

The goal is to remove polyps completely, obtain an accurate diagnosis, and, in the colon, reduce future cancer risk. Endoscopic removal avoids surgery for the great majority of polyps and is generally quick and well tolerated.

Benefits vary by individual and by the number and type of polyps. Polypectomy lowers but does not eliminate cancer risk, so ongoing surveillance remains important, and new polyps can form. Your gastroenterologist can discuss realistic goals and a follow-up plan.

Risks and Possible Complications

Polypectomy is generally safe, but there are real risks, higher for larger polyps.

• Bleeding from the removal site, occasionally delayed by days and sometimes needing treatment
• Perforation — a hole in the bowel or stomach wall — which is uncommon but may require repair or surgery
• A localized burn injury from cautery (post-polypectomy syndrome) causing pain and fever
• Incomplete removal, requiring a further procedure
• Reactions to sedation, and the general small risks of endoscopy

Your endoscopist will explain the risks specific to your polyps. Report heavy bleeding, severe pain, or fever after the procedure promptly.

Recovery, Follow-up & Aftercare

Most people recover quickly after polypectomy, resting for the day due to sedation and resuming normal activity within a day or two. You may be advised to avoid heavy lifting, alcohol, and blood-thinning medication briefly after removal of larger polyps to reduce bleeding risk.

Pathology results guide the next steps and a surveillance schedule for repeat endoscopy. Watch for delayed bleeding or pain in the days afterward. Recovery varies by individual. Arrange to receive your results and follow-up plan, and to continue surveillance with your local doctor, before travelling home.

Medical Tourism Planning

If you are considering polypectomy abroad, choose a JCI- or ISO-accredited hospital with an experienced endoscopy unit that offers advanced techniques (EMR/ESD) and on-site pathology and surgical backup for complications. Verify the endoscopist's experience with the type of polyp you have.

Plan a short in-country stay covering the procedure, recovery, and results, and confirm how pathology reports and surveillance will reach your home doctor. Consider medical travel insurance and request a written plan and cost estimate before you travel.

Estimated Cost Factors

The cost depends on the country and hospital, whether a standard or advanced technique (EMR/ESD) is needed, the number and size of polyps, sedation, pathology, and any treatment of complications. Combined colon and stomach procedures affect the total.

Many international destinations offer endoscopic polypectomy at a fraction of typical US prices, but figures vary by case. Online prices are only estimates — always request a personalized written quote that lists what is included before making any decision.

Choosing a Hospital or Specialist

Look for a hospital with recognized accreditation and a high-quality endoscopy service, ideally offering advanced polyp removal and with on-site pathology and surgical support. Confirm the endoscopist's experience and, for complex polyps, their EMR/ESD volume.

Ask about complication rates, how bleeding or perforation would be managed, how results are reported, international patient services, and interpreter support. Transparent, written cost and treatment plans and clear communication are signs of a quality program.

Alternatives

Depending on the polyp, alternatives may include surveillance of very small, clearly benign polyps, surgery for polyps too large or suspicious for endoscopic removal, or referral for advanced endoscopic techniques if the initial center cannot remove a difficult polyp safely.

Each option has different benefits, risks, and completeness. Discuss the choices with your gastroenterologist so the plan fits the type, size, and location of your polyps and your overall health.

Questions to Ask Your Doctor

• How many polyps do I have, and can they all be removed endoscopically?
• What technique will you use, and might I need an advanced session (EMR/ESD) or surgery?
• How should I adjust my blood thinners before the procedure?
• What are the risks in my case, especially bleeding and perforation?
• When will I get my pathology results, and what surveillance will I need?
• If travelling, how long should I stay, and how will results reach my home doctor?
• What is included in the written cost estimate?