Overview
An anal abscess forms when an anal gland becomes blocked and infected. It needs to be drained. Some abscesses lead to an anal fistula, an abnormal tunnel to the skin.
Symptoms
- Constant, throbbing pain around the anus, often worse when sitting
- A red, tender swelling near the anus
- Fever and chills
- Pus discharge
Causes and risk factors
Risk factors include Crohn's disease, diabetes, a weakened immune system, constipation and anal sex.
Diagnosis
Most abscesses are diagnosed by examination. An ultrasound or MRI may be needed for deeper abscesses.
Treatment
The main treatment is surgical drainage, often under anaesthesia. Antibiotics may be added for people with diabetes, a weak immune system or spreading infection. Warm baths and pain relief help recovery.
When to see a doctor
See a doctor promptly if you have painful swelling near the anus. Seek urgent care for high fever or spreading redness.
This information is for general education and does not replace advice from a qualified doctor. For a medical emergency, call +92-51-8446666 or go to the nearest emergency department.
