What is a perianal abscess?
A perianal abscess is a cavity of pus developed around an anus usually when an anal gland is infected. It results in suffering, inflammation, and frequently, it is necessary to drain.
What causes a perianal abscess?
Common causes include blocked anal glands, small skin cuts or infections, inflammatory bowel diseases (like ulcerative colitis), and trauma or surgery near the anus.
What's the difference between a perianal and a perirectal abscess?
Perianal abscess occurs immediately beneath the skin on the anus. The perirectal abscess is more in the tissue surrounding the rectum and this may necessitate more comprehensive treatment.
Can ulcerative colitis lead to a perianal abscess?
Yes. Inflammatory bowel diseases such as ulcerative colitis increase the risk of anal gland infections, which can progress to abscess formation.
Do I always need surgery to treat a perianal abscess?
Majority of abscesses have to be emptied- it is a simple operation that is performed with a local anesthetic. Only the antibiotics are not very likely to heal the infection.
Is general anesthesia required for drainage?
Not usually. Many abscesses are drained in the office using local numbing medicine. General anesthesia is reserved for complex or deep abscesses.
How long is recovery after drainage?
In many cases, pain can be cured in several days. The abscess size and depth may require 2-4 weeks to be fully healed.
Can I treat a perianal abscess at home?
Sitz baths and over-the-counter pain relievers may provide comfort, but proper drainage by a medical professional is essential for healing.
When should I see a specialist?
When you experience constant pain, swelling, and/or fever and/or you have observed the presence of pus around the anal area, then seek early diagnosis with a colorectal surgeon or a gastroenterologist.
Can a perianal abscess recur?
Yes. While drainage and good aftercare reduce the chance of recurrence, managing underlying issues like IBD helps prevent future abscesses.
Medically Reviewed by
Dr. Bharat Pothuri, MD, FACG
| Updated 03-17-2026