Anal Fissure

An anal fissure is a small split or tear in the thin moist tissue (mucosa) lining the lower rectum (anus). Causes Anal fissures are very common in young infants, but may occur at any age. The rate of anal fissures drops with age. Fissures are much less common among school-aged children than infants. In adults, Read More

Anorectal Abscess

Also known as: anal abscess, rectal abscess, perirectal abscess, perianal abscess, anal gland abscess. An anorectal abscess is a collection of pus in the area of the anus and rectum. Causes, incidence, and risk factors Common causes of anorectal abscess include: Blocked glands in the anal area Infection of an anal fissure Sexually transmitted infection Deep rectal Read More

Colorectal Cancer

Colorectal Cancer Basics Colorectal cancer is the second-leading cause of cancer deaths in the U.S. Men and women are at equal risk of developing colorectal cancer. Early detection of colorectal cancer leads to easier treatments and higher survival rates. More than one-third of colorectal cancer deaths could be avoided if all eligible individuals participated in Read More


Hemorrhoid Basics Hemorrhoids are swollen veins. Each of us has veins around the anus that tend to stretch under pressure. One set of veins is inside the rectum (internal) and another is under the skin around the anus (external). Hemorrhoidal tissue is thought to be helpful in holding back stool at rest and in cushioning Read More