Anal fistulas
An anal fistula, or fistula-in-ano, is an abnormal connection between the lining of the anal canal and the skin around the anus.
It is a chronic condition which results from an abscess winding its way from an acute inflammation of the anal glands to the outside. Anal abscesses can be described as a discrete cavity filled with pus. More than 50 percent of all anal abscesses lead to an anal fistula.
Diffuse sensations of pressure, swelling around the anus and slow onset of pain, increasing gradually and becoming very strong, are typical symptoms of an abscess. General symptoms such as fever and malaise may also be observed.
An anal fistula is accompanied by constant wetting of the anal fistula or discharge of pus. Itching, skin irritation and severe pain during bowel movements are also possible.
Anal abscesses and fistulas must be diagnosed and treated by a physician.
