Pus From the Anus

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Reviewed By:

Carlos Cuenca

Carlos Cuenca, MD (General surgery)

Yoshinori Abe

Yoshinori Abe, MD (Internal medicine)

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Content updated on Sep 6, 2022

About the symptom

Purulent discharge from the anal region is yellow or yellow-white pus from the anus. It is usually the result of an anal abscess which is a painful condition in which a collection of pus develops near the anus. It occurs due to infection of the small anal glands.

When to see a doctor

Seek professional care if you experience any of the following symptoms

  • Pus from around the anus or anus itself

Possible causes

  • Crohn's disease

    An inflammatory condition of the gut that damages the gut wall. Symptoms can occur anywhere from the mouth to the anal region. The exact cause is not well known.

  • Anal fistula

    This is a condition where a tunnel forms between the anus and the skin surrounding the anus. Patients are prone to recurrent infection of the area, and this is often associated with inflammatory bowel disease like Crohn's disease.

  • Ulcerative colitis

    An inflammatory condition of the large intestine that damages the gut wall. The exact cause is not well known.

Related serious diseases

  • Perianal abscess

    A collection of pus near the anus. It happens more commonly in patients with diabetes, obesity, or certain conditions that cause gut ulcers.

Questions your doctor may ask about this symptom

Your doctor may ask these questions to check for this symptom

  • Do you have pus from around the anus or anus itself?

  • Do you have a fever?

  • Do you have skin redness?

  • Do you have anal pain?

  • Do you have itching of the anal region?

Other Related Symptoms

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Reviewed By:

Carlos Cuenca

Carlos Cuenca, MD (General surgery)

Yoshinori Abe

Yoshinori Abe, MD (Internal medicine)

From our team of 50+ doctors

Just 3 minutes.
Developed by doctors.

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