Anal polyps are small growths that form on the lining of the anus or lower rectum. They are usually benign adenomas (non-cancerous) but should always be evaluated by a doctor, as some types of polyps can develop into cancer over time. They are by definition a low grade dysplastic (atypical behaviour) lesion with the potential for progression of the dysplasia to an invasive malignancy. There is a feature called AIN (Anal Intraepithelial Neoplasia), which is precancerous condition and must be taken seriously.
These lesions can be pedunculated (mushroom-shape), or “sessile” with board base. They can occur separately, or as multiple lesions. They can vary greatly in size and extent. Anal polyps are often discovered during a colonoscopy or rectal examination, since many people don’t notice symptoms.
Some anal polyps cause no symptoms, but when they do, they may include:
If you experience bleeding or other symptoms, it’s important to have them checked, not all rectal bleeding is due to hemorrhoids.
Polyps can form due to abnormal growth of cells in the anal or rectal lining.
Common risk factors include:
The treatment depends on the type, size, and location of the polyp. Options include:
Regular screening and colorectal evaluation are essential to prevent recurrence or detect any early malignancy.
Visit your doctor if you have:
Anal polyps are usually harmless but must be diagnosed and removed safely to rule out any precancerous changes.
Early screening and expert care make all the difference.