Colon Polyps Found: Removal, Results and Follow-up Colonoscopy

Being told that polyps were found can be unsettling, especially while you are still drowsy from sedation. Polyps are common, most are removed in the same procedure, and what happens next depends on what the laboratory finds. This guide explains the process and the questions worth asking. It does not give you a schedule, because your follow-up is set by your own doctor from your results and your history.

What happens if a polyp is found during a colonoscopy?

In most cases the doctor removes it during the same colonoscopy and sends it to a laboratory to be examined under a microscope. Small polyps are usually taken off with a small wire loop or forceps, which you do not feel. Larger ones may be removed in several pieces, and the doctor may place small clips on the site to reduce the risk of bleeding.

Sometimes a polyp is not removed straight away. It may be very large, flat or in an awkward position, or the procedure may have been booked in a setting where removal is not done. You are then booked for a second procedure, sometimes with a specialist team. Patients in China report that some hospitals only remove polyps during inpatient procedures, so an outpatient scope that finds one may have to be repeated.

If you are travelling for a colonoscopy, ask before you book whether polyps can be removed in the same session, how larger polyps are handled, and what removal and pathology add to the cost.

After removal, mild cramping and wind are common, and so is a small amount of blood soon afterwards. Heavy bleeding, severe pain, fever or a swollen, hard abdomen in the following days need urgent medical care.

Are most colon polyps cancer?

No. Most polyps are not cancer. Some types, often called precancerous, can slowly turn into cancer over years if they are left in place, which is why removing them is the whole point of the test.

The pathology report names the type of polyp. Words you may see include hyperplastic (a type usually considered low risk), adenoma or adenomatous (the most common precancerous type, described as tubular, tubulovillous or villous), and sessile serrated (another precancerous type). The report may also mention dysplasia, which describes how abnormal the cells look. Occasionally a report finds cancer inside a polyp; the doctor then explains whether removal was enough or whether more tests or treatment are needed.

How often do you need a colonoscopy after polyps are removed?

There is no single answer: your doctor sets the interval from your results, and it is usually shorter than for someone whose colonoscopy found nothing. Practice also differs between countries, so two people with similar results in different places may be told different things.

Ask for the recommended interval in writing, with the reason for it. If it seems unusually short or long, it is reasonable to ask why, or to get a second opinion. If polyps keep coming back, or you have many at a young age, your doctor may suggest genetic counselling, because a small number of families carry inherited conditions that cause polyps.

How long do polyp results take, and what if you have the test abroad?

The doctor can usually tell you straight after the procedure what was seen and removed, but the laboratory result takes longer, and the time varies between hospitals.

If you have the colonoscopy in another country, plan how the results will reach you and your doctor at home. Before you leave, ask for:

• the endoscopy report, with photos of what was found
• the pathology report when it is ready, in a language your doctor at home can read
• the number, size and position of the polyps, and whether each was removed completely
• the hospital's suggestion for follow-up, which your own doctor can then confirm or change

Because follow-up colonoscopies repeat over the years, cost and waiting times matter. According to NHS England's diagnostic waiting time statistics for July 2026, 79,510 people were on the colonoscopy waiting list and 30.8% had waited six weeks or more.

Sources: US figures from New Choice Health and Healthcare Bluebook (2024–26). UK figures from the Private Healthcare Information Network (PHIN), updated July 2025. China figures from the published price list of Dongguan Tungwah Hospital and a health-portal estimate. Foreign patients pay the full listed price in China.

How often should you have a colonoscopy with a family history of colon cancer or polyps?

Often earlier and more often than average, but the starting age and interval depend on who in your family was affected, at what age, and what your own colonoscopies show. Your doctor sets this, and the advice differs between countries.

Before your appointment, write down:

• which relatives were affected: a parent, brother, sister or child counts more than a more distant relative
• whether they had cancer or advanced polyps
• how old they were when it was found
• how many relatives were affected, and on which side of the family
• any inherited condition already diagnosed in the family

If a parent or sibling had colon cancer or advanced polyps, ask your doctor directly whether you should start before the usual age where you live. Do not wait for an invitation from a national screening programme, because those are usually sent by age alone.

Can a colonoscopy miss colon cancer?

Yes, occasionally. Colonoscopy is a very thorough test, but no test is perfect: small or flat polyps can sit behind folds, and a poorly cleaned bowel makes this more likely.

A complete examination depends on good bowel prep, the scope reaching the start of the colon (reports often say "caecum reached"), and enough time spent looking on the way out. You can ask whether your report confirms that the whole colon was seen and how clean the bowel was. If the prep was poor or the examination incomplete, an earlier repeat is often advised.

New symptoms between colonoscopies, such as bleeding, a lasting change in bowel habit or unexplained weight loss, should be checked by a doctor even if your last test was clear.