A fistula-in-ano is a track that joins the bowel with an abscess or the skin of the perianal region.

For sites pertaining to hemorrhoids (piles). Not for sites selling hemorrhoid relief products or for colorectal surgeons' practices.

Diagnosis of imperforate anus (the absence of a normal anal opening)is usually made shortly after birth by a routine physical examination. Imperforate anus occurs in about 1 in 5000 births and its cause is unknown. Children who have imperforate anus may also have other congenital anomalies. The acronym VACTERL describes the associated problems that infants with imperforate anus may have: Vertebral defects, Anal atresia, Cardiac anomalies, Tracheoesophageal fistula, Esophageal atresia, Renal anomalies, and Limb anomalies.

Procedure that combines complete removal of the colon and creation of a new rectum using the ileum. This procedure may also be referred to as ileal reservoir reconstruction, ileal pouch-anal anastomosis, restorative proctocolectomy, or W-, S-, or J-pouch reconstruction.