Anal Abscess

An anal abscess (also known as a peri-anal abscess) is a cavity of infection near the anus or rectum. 

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What are the symptoms of an anal abscess?

Common symptoms of an anal abscess include pain, swelling (or a lump) and redness of the skin around the anus. 

Sometimes, patients may also experience fevers. 

An abscess may self-discharge (or ‘pop’ on its own).  A thick, creamy fluid may be seen if this occurs. 

Due to the close proximity of the anus and urinary tract, trouble starting the urinary stream or discomfort with urination may occur.

What causes an anal abscess?

Everyone has glands within the anus.  The most common cause of an anal abscess is a blockage within an anal gland.  Infection occurs behind this blockage.  This process can be likened to a blocked pore on the face, which produces a pimple (a type of abscess) behind it.   

Less commonly, an anal abscess may be associated with other bowel conditions.

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How is an anal abscess diagnosed?

Usually, an anal abscess is diagnosed on inspection and examination of the area. 

Occasionally, other tests may be required, such as a 3-dimensional ultrasound of the anus and rectum, or a CT scan.

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How is an anal abscess treated?

The aim of treatment is to remove the infected material.  This usually requires a small operation, where an incision is made in the skin over the abscess. The infected material is then cleaned out.  This usually produces rapid improvement in symptoms. 

This procedure can be performed as a day procedure.

Dr Zhu has extensive experience in the treatment of anal abscess and performs anal abscess surgery.  Dr Zhu can assess your symptoms and recommend a personalized treatment plan.