An anal abscess forms when an infection in one of the glands around your anus generates pus. The pus gathers in a cavity in the skin and develops into a painful abscess.
Men are twice as likely as women to have anal abscesses, which are more common between the ages of 20 to 60.
An anal abscess requires medical treatment to drain the pus, relieve pain and reduce the risk of further infection.
If you think you have an anal abscess, see your GP as soon as possible. They’ll ask about your symptoms, and your general health, including any history of bowel conditions.
They’ll examine your anus and rectum to check if you have a visible anal abscess or anal fistula (perianal abscess fistula). About one in two people with an anal abscess develops an anal fistula, a tunnel between your anus and rectum.
Your GP will check for conditions that can cause similar symptoms, such as inflammatory bowel disease and diverticulitis. In rare cases, perianal abscess causes include certain cancers and conditions which weaken the immune system.
Your GP may refer you to a colorectal surgeon or may refer you for further investigations, including an MRI scan.
The risk of having an anal abscess is higher if you have:
An anal abscess must be surgically drained, as quickly as possible. Your GP or consultant will drain your anal abscess, which can be done under a local or general anaesthetic.
Your GP or consultant will also be able to prescribe you with pain relief and, if required, antibiotics.