Anal Discharge and Odour

Ongoing moisture, staining of underwear or an unpleasant odour around the anus is a distressing but treatable complaint. The character of the discharge — mucus, pus or stool — points to different causes.

Common causes

Anal fistula with recurrent purulent discharge
Prolapsing hemorrhoids producing mucus
Anal soiling due to incomplete closure or hygiene difficulty
Perianal dermatitis or fungal infection
Rectal prolapse in older adults
Inflammatory bowel disease involving the perianal region

Evaluation and management

Examination identifies external openings, skin changes and sphincter tone. Where a fistula is suspected, imaging such as MRI may be used to map the tract before treatment planning.

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.

Symptoms Treatments FAQ

Frequently asked questions

Is discharge always a sign of infection?

No. Mucus discharge can occur with hemorrhoids or prolapse without infection, while pus indicates an infectious process.

Do hygiene products help?

Gentle washing with water and drying is usually preferred; perfumed products may worsen irritation.

Will discharge stop on its own?

Discharge from a fistula typically recurs until the underlying tract is treated.