Perianal Abscess — Patient Information
A perianal abscess is a collection of pus in the tissues around the anus, usually arising from infection of the anal glands. It typically causes increasing pain, swelling and sometimes fever, and generally requires prompt surgical drainage.
Symptoms
- Throbbing pain around the anus that worsens over days
- A tender, warm swelling near the anal opening
- Fever or general malaise in some patients
- Spontaneous discharge of pus if the abscess ruptures
Why prompt treatment matters
An untreated abscess can enlarge, spread into surrounding tissues and, in some patients, evolve into an anal fistula. Surgical drainage is usually the primary treatment; antibiotics alone are generally not sufficient.
Relationship with anal fistula
A proportion of patients who have had a perianal abscess later develop an anal fistula. Follow-up after drainage is important so that a developing fistula can be recognised and managed.
This page is for general information only
The content here is not a diagnosis or treatment recommendation and does not replace an individual medical evaluation. If your symptoms persist, consult a physician. In emergencies call 112 or the nearest emergency department.