Hemorrhoids are also known as piles, and are a painful condition when veins around the anus or in the lower rectum become swollen. The swelling causes a lot of pain and discomfort. Internal hemorrhoids develop within the anus or rectum, while external hemorrhoids develop outside the anus and can be caused by bowel movements that cause them to bulge out due to constipation.
Colonoscopy
A colonoscopy is done to examine the inside of the colon and rectum.
Digital examination
A digital rectal examination examines the internal organs in the lower rectum
