When polyps are seen with a barium enema X-ray test, the person may need a sigmoidoscopy or colonoscopy. During these procedures, the healthcare provider can sometimes remove or destroy polyps through the tube. Otherwise, the provider may cut off a small piece of the polyp for a biopsy to be looked at under a microscope.
In some cases, a portion of the colon is removed surgically, with a colostomy. This is usually done if the polyp is large, or if the biopsy looks suspicious under the microscope.
Colonoscopy and sigmoidoscopy involve a risk of tearing a hole in the bowel, bleeding, and infection. This risk is increased when biopsies are taken. Any surgery involves a risk of infection, bleeding, and allergic reaction to anesthesia.
After a polyp is treated, the person can generally go back to his or her normal activities. The healthcare provider will recommend a follow-up plan based on the type of polyps a person has.
All persons are advised to have regular screening for colorectal polyps and colorectal cancer after the age of 50. Those with polyps will need more frequent future screenings with either colonoscopy or barium enema.