There are many congenital abnormalities that babies may be born with because of problems in the womb that affect the foetus growing inside. One of them is an imperforate anus. The anus is the opening at the end of the digestive system that allows a person to eject faecal matter from the body. When the anus does not have a normal opening or if the opening is blocked or malformed it is called imperforate anus. Surgery is necessary to repair this condition, wherein the surgeon may create an opening for the stool to pass. In severe cases, more than one surgery may be needed.