Swelling or lump
A lump, swelling, or tender area near the anus can be alarming. Several conditions can cause this, and the characteristics of the lump often help distinguish between them.
Conditions commonly associated with this symptom
Hemorrhoids (piles)
Swollen blood vessels in or around the anus and rectum. One of the most common colorectal conditions.
Learn more →Anal fistula
An abnormal tunnel between the inside of the anus and the skin nearby, often developing after an abscess.
Learn more →Perianal abscess
A painful, pus-filled pocket near the anus, usually requiring drainage.
Learn more →Pilonidal sinus
A small tunnel or cyst in the skin at the top of the buttock crease, often becoming infected.
Learn more →Sentinel pile / skin tag
A small tag of skin near the anus, often forming near a chronic fissure or after hemorrhoids.
Learn more →Post-procedure recovery
Recovery experiences after common colorectal procedures including surgery, banding, and drainage.
Learn more →Relevant guides
Hemorrhoids: patterns and care
Learn what hemorrhoids are, the difference between internal and external types, what people commonly experience, what tends to help, and when to seek medical care.
Read guide →Thrombosed hemorrhoid: the sudden lump
What a thrombosed hemorrhoid is, why it happens suddenly, what people experience, pain patterns and timelines, and when to seek urgent care.
Read guide →Perianal abscess: patterns and care
Learn what a perianal abscess is, what people commonly experience, why it typically needs drainage, and when to seek urgent medical care.
Read guide →When to seek care
If you experience any of the following, seek urgent medical care:
- Severe or worsening pain
- Heavy bleeding
- Fever
- Black stools
- Fainting or dizziness
- Pus or unusual discharge
- Inability to pass stool or gas
- Unexplained weight loss