This is inserted a few inches into the anus in order to evaluate problems of the anal canal.

Anoscopy is used to diagnose hemorrhoids, anal fissures (tears in the lining of the anus), and some cancers.

The doctor will coat the anoscope with a lubricant and then gently push it into the anus and rectum.

This helps the doctor insert the anoscope more easily and identify any bulges along the lining of the rectum.

By shining a light into this tube, the doctor will have a clear view of the lining of the lower rectum and anus.