Anus

"The anus is the end of the large intestine, below the rectum, through which stool (solid waste) leaves the body. The anus is formed partly from the outer skin layers of the body and partly from the intestine. Two ring-like muscles, called sphincter muscles, open and close the anal opening to let stool pass out of the body. The anal canal, the part of the anus between the rectum and the anal opening, is about 1½ inches long. The skin around the outside of the anus is called the perianal area. Tumors in this area are skin tumors, not anal cancer."

Anal Fissure

An anal fissure is a cut or tear occuring in the anus (the opening through which stool passes out of the body) that extends upwards into the anal canal. Fissures .....

Hemorrhoids

Hemorrhoids or haemorrhoids, are vascular structures in the anal canal which help with stool control. They become pathological or piles when swollen or inflamed. In their physiological state, they act .....

Constipation

Constipation (also known as costiveness or dyschezia) refers to bowel movements that are infrequent or hard to pass. Constipation is a common cause of painful defecation. Severe constipation includes obstipation .....

Proctocolitis

Proctocolitis is a general term for inflammation of the rectum and colon. Proctocolitis has many possible causes. Common infectious causes of proctocolitis include Chlamydia trachomatis, Neisseria gonorrhoeae, HSV, and Campylobacter .....

Fistula

An anal fistula is a small channel that can develop between the end of the bowel and the skin near the anus. An anal fistula can cause bleeding and discharge .....

Proctitis

Proctitis is defined as inflammation of the anus (the opening) and lining of the rectum (lower part of the intestine leading to the anus). Symptoms of proctitis can vary greatly. .....