* Disease: Infections including an anorectal abscess and inflammatory diseases including Crohn's disease and ulcerative colitis can result in<unk> s.<unk> s to the anus may occur in hidradenitis suppurativa. In women,<unk> s can also occur following pelvic infection and inflammation. Probed surgically excised gastrocutaneous<unk>  tract, that resulted from a previous gastrostomy tube. * Surgical and medical treatment: Complications from gallbladder surgery can lead to biliary<unk> s. As well as being congenital or resulting from trauma, arteriovenous<unk> s are created purposefully for hemodialysis. Radiation therapy to the pelvis can lead to vesicovaginal<unk> s. Persistent gastrocutenaous<unk> s can develop after gastrostomy. * Trauma: Prolonged childbirth can lead to<unk> s in women, in whom abnormal connections may occur between the bladder and vagina, or the rectum and vagina. An obstetric<unk>  develops when blood supply to the tissues of the vagina and the bladder (and/or rectum) is cut off during prolonged obstructed labor. The tissues die and a hole forms through which urine and/or feces pass uncontrollably. Vesicovaginal and rectovaginal<unk> s may also be caused by rape, in particular gang rape, and rape with foreign objects, as evidenced by the abnormally high number of women in conflict areas who have suffered<unk> e. In 2003, thousands of women in eastern Congo presented themselves for treatment of traumatic<unk> s caused by systematic, violent gang rape, often also with sharp objects that occurred during the country's five years of war. So many cases have been reported that the destruction of the vagina is considered a war injury and recorded by doctors as a crime of combat. Head trauma can lead to perilymph<unk> s, whereas trauma to other parts of the body can cause arteriovenous<unk> s.
Fistula
Fecal impaction
Intestinal ischemia
Defecation
Vesicointestinal fistula
Bowel obstruction
Organ perforation
Evisceration 