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Published on: 7/14/2026
A perianal abscess is a painful, pus-filled infection that develops in the tissue around the anus. Common symptoms include throbbing pain near the anus, swelling, redness, warmth, and sometimes fever. It typically occurs when small anal glands become blocked and infected.
Treatment involves draining the pus through a minor in-office procedure, which provides immediate relief. Antibiotics may be prescribed if the infection has spread or if you have a weakened immune system, diabetes, or other risk factors. Without treatment, a perianal abscess can worsen or develop into an anal fistula.
Because perianal pain and swelling can also signal other conditions—such as hemorrhoids, anal fissures, or fistulas—getting an accurate assessment early matters. A free, instant, online symptom check can help you identify likely causes based on your specific symptoms, understand urgency, and know exactly what type of care to seek next. It takes just a few minutes and could save you days of uncertainty.
Reviewed for medical accuracy: 07/14/2026
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Submit your own QuestionA perianal abscess is a painful, swollen lump that forms near the opening of your anus when an infection causes a collection of pus.
The most common symptoms include pain when sitting or during bowel movements, redness and warmth in the area, and sometimes fever. You might feel a throbbing or aching sensation near your anus, which can make it hard to sit or walk comfortably. If you're experiencing these symptoms and want to better understand what might be causing them, you can take a free symptom checker test to help identify potential conditions.
To treat this condition, healthcare providers usually perform a simple procedure called incision and drainage (I&D). In this procedure, a small cut is made to open the abscess and allow the pus to drain out, which often relieves pain and begins the healing process. In some cases, if the infection is more severe or spreads, antibiotics may be prescribed to help clear the infection. After treatment, keeping the area clean, taking warm sitz baths, and following your provider's instructions will help ensure that you heal properly.
(References)
Sigmon DF, Emmanuel B, Tuma F. Perianal Abscess. [Updated 2023 Jun 12]. In: StatPearls [Internet].
Amato A, Bottini C, De Nardi P, Giamundo P, Lauretta A, Realis Luc A, Piloni V. Evaluation and management of perianal abscess and anal fistula: SICCR position statement. Tech Coloproctol. 2020 Feb;24(2):127-143. doi: 10.1007/s10151-019-02144-1. Epub 2020 Jan 23. PMID: 31974827.
Malik AI, Nelson RL, Tou S. Incision and drainage of perianal abscess with or without treatment of anal fistula. Cochrane Database Syst Rev. 2010 Jul 7;(7):CD006827. doi: 10.1002/14651858.CD006827.pub2. PMID: 20614450.
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