Anal fistulas are small abscess or infected cavity is formed due to blockage of certain glands of the anus. Anus is the end portion of the digestive tract through which feces are expelled. The passage between the muscular opening of the anus and the skin gets infected to form an abscess. Anal fistulas are caused by abscess and it can cause pain during bowel movements with bleeding. It can be treated by surgery.
Causes :
Anal abscess is the major cause for the formation of anal fistulas. In some people Crohn’s disease or sexually transmitted disease can cause anal fistulas. Even infectious disease like tuberculosis or sudden trauma can trigger to form an abscess leading to anal fistulas.
Symptoms :