![]() ![]() Sometimes a fistula may not occur until months or even years later. However, fistulas often develop four to six weeks after an abscess is drained. Sometimes, fistula surgery can be performed at the same time as abscess surgery. Antibiotics may be required, though, for some people, including those with diabetes or decreased immunity. For otherwise healthy people, antibiotics are usually not needed. Large or deeper anal abscesses may require hospitalization and the assistance of an anesthesiologist.Īfter the procedure, most people are prescribed medications for pain relief. Superficial anal abscesses can be drained in a doctor's office using a local anesthetic. Prompt surgical drainage is important, preferably before the abscess erupts. The doctor may also ask for an ultrasound, a CT scan, or an MRI. In rare cases, an examination may be done under anesthesia. But some patients may require additional tests to screen for: Usually, a clinical evaluation - including a digital rectal exam - is sufficient to diagnose an anal abscess. Sometimes, fever is the only symptom of deep anal abscesses. Constipation or pain associated with bowel movementsĭeeper anal abscesses may also be associated with:. ![]() Skin irritation around the anus, including swelling, redness, and tenderness.Pain, which is usually constant, throbbing, and worse when sitting down.Superficial anal abscesses are often associated with: For infants and toddlers, frequent diaper changes and proper cleaning during diaper changes can help prevent anal fistulas and perianal abscesses. Being the receptive partner in anal sexįor adults, using condoms during sexual intercourse, including anal intercourse, can help prevent anal abscesses.Inflammatory bowel disease such as Crohn's disease or ulcerative colitis.An anal fissure, a tear in the anal canal, that becomes infected.Causes of Anal AbscessesĪn anal abscess can have many different causes. Surgery is needed to cure almost all anal fistulas. In other cases, where the outside of the tunnel opening closes, the result may be recurrent anal abscesses. In some cases, an anal fistula causes persistent drainage. A fistula is a small tunnel that makes an abnormal connection between the site of the abscess and the skin. Surgical incision and drainage is the most common treatment for all types of anal abscesses and is usually successful.Ībout 50% of patients with an anal abscess will develop a complication called a fistula. Anal abscesses located in deeper tissue are less common and may be less visible. It may be red in color and warm to the touch. This often appears as a painful boil-like swelling near the anus. The most common type of abscess is a perianal abscess. Most anal abscesses are a result of infection from small anal glands. An anal abscess is a painful condition in which a collection of pus develops near the anus. ![]()
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