Anal Swelling and Lumps

A swelling felt or seen at the anal opening is a common reason for consultation. Whether it is painful, whether it appeared suddenly and whether it can be pushed back are the main distinguishing features.

Possible causes

Prolapsing internal hemorrhoid
Thrombosed external hemorrhoid
Perianal skin tag after a healed fissure or hemorrhoid
Perianal abscess
Anal warts (HPV-related lesions)
Rectal prolapse in older adults

Evaluation

Inspection and digital examination, supported by anoscopy where appropriate, generally identify the cause. Lesions that persist, bleed or change in appearance may require biopsy.

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

Do skin tags need to be removed?

Not routinely. Removal is considered when they cause hygiene difficulty or persistent irritation.

Can a swelling disappear by itself?

Thrombosed hemorrhoids often shrink over days to weeks, but recurrent or painful swellings should be assessed.

Could a lump be cancer?

Most anal lumps are benign, but a hard, ulcerated or persistent lesion needs examination and sometimes biopsy.