Anal Skin Tags vs Haemorrhoids — What Is the Difference?

Three distinct conditions — one location

The skin around the back passage is actually a common place for lumps and skin changes to appear, and the great majority of them are completely harmless. The three things that people most often confuse are:

• Anal skin tags — soft, fleshy little protrusions of extra skin; no meaningful blood supply; typically painless and don't bleed
• External haemorrhoids — swollen blood vessel tissue just below the anal opening, covered by sensitive skin; can cause aching and, if a clot forms (thrombosis), very severe pain
• Sentinel skin tag (of anal fissure) — a specific type of tag that forms at the lower end of an anal fissure; its presence is a clue that there's an underlying tear that needs treatment

It matters which one you have, because the causes, symptoms, and treatments are different. A skin tag isn't the same as an external haemorrhoid — although the two are related, since skin tags often develop as leftover tissue after a haemorrhoid has settled.

Side-by-side comparison

What is an anal skin tag?

An anal skin tag is a small, harmless flap of extra skin. Skin tags are not dangerous — they don't bleed on their own, they're not a sign of cancer, and they can't turn into cancer. You can think of them as a little fold of skin that has no particular purpose.

The most common reason a skin tag forms is a thrombosed external haemorrhoid (a blood clot inside a haemorrhoid) that has resolved. When that happens, the swelling can be quite pronounced. Over two to four weeks, the clot dissolves and the swelling goes down — but the stretched skin doesn't simply bounce back to its original size. The excess skin stays there, soft and fleshy, as a skin tag.

Skin tags can also develop after childbirth, after anal surgery, or in people with Crohn's disease — an inflammatory bowel condition. The skin tags associated with Crohn's tend to look a bit different: they're often swollen-looking and have a bluish tinge. If that description sounds like yours, it's worth mentioning to your doctor so the underlying condition can be properly assessed.

Symptoms of anal skin tags

Most anal skin tags cause no symptoms at all — many people discover them while showering and never have a problem. When they do cause bother, it's usually one of these things:

• Hygiene difficulty — the extra folds of skin can make it harder to clean properly after going to the toilet, which can lead to irritation and itching
• Perianal itch — moisture can accumulate around the tag, causing ongoing itch
• Discomfort — if the tag is large or sits in a spot where it gets squeezed when you sit
• Self-consciousness — skin tags are visible to you when bathing, which can be unsettling even when there's nothing medically wrong

Skin tags don't bleed and don't cause pain on their own. If your lump is painful or bleeding, it's more likely to be a haemorrhoid — especially a thrombosed one — or the sentinel tag of an anal fissure. Either of those is worth getting assessed promptly.

External haemorrhoids — distinct from skin tags

An external haemorrhoid is an actual blood vessel structure — swollen haemorrhoidal tissue just outside the anal opening, covered by skin that has plenty of pain-sensing nerves. Unlike a skin tag, it contains blood and is connected to the blood supply of the haemorrhoidal system.

When an external haemorrhoid is uncomplicated, it might just cause some mild aching — particularly after sitting for a long time or after straining with constipation. But when a blood clot forms inside one (acute thrombosis), the result is sudden, severe, constant pain and a firm, very tender lump. This is one of the most painful things that can happen in this area, and it often brings people to an emergency department.

Telling the difference from a skin tag is usually straightforward once you know what to look for: a skin tag is soft, painless, and stays the same. A thrombosed external haemorrhoid is firm, extremely tender, often purple or bluish, and hurts a lot.

The sentinel skin tag of anal fissure

A sentinel skin tag — also called a sentinel pile — is a specific type of skin tag that forms at the outer edge of a chronic anal fissure (a tear in the anal canal lining). It's called "sentinel" because it sits at the entrance of the fissure, marking its location.

The tag forms in response to ongoing inflammation at the fissure site. It tends to be slightly swollen-looking and firmer than a simple skin tag. It almost always appears at the back midline — the 6 o'clock position — which is where the vast majority of fissures occur.

The tag itself usually doesn't hurt. But the fissure it's marking does — quite a lot. People with a sentinel tag typically have severe pain during and after bowel motions, sometimes lasting an hour or more. If you try to remove the tag without treating the fissure, your symptoms won't improve. The fissure is the problem; the tag is just the signal.

Treatment — when is removal necessary?

Anal skin tags — keeping things simple

Most skin tags don't need treatment. If yours isn't causing any real problems, the best approach is simply good hygiene — gentle cleaning after going to the toilet, no vigorous wiping, and keeping the area dry. A bidet or gentle water rinse works really well for keeping the area comfortable when you have skin tags.

When removal makes sense

Removing a skin tag is a reasonable option when:

• Hygiene is genuinely difficult despite your best efforts
• Persistent itching and irritation aren't settling with conservative measures
• The tag is large or positioned uncomfortably, causing ongoing soreness
• You want it removed for personal or cosmetic reasons — that's a completely valid reason

Small tags can often be removed under local anaesthetic in a clinic setting. Larger tags, or when several are being removed at once, are usually done under general anaesthetic as a short day procedure. The area heals well and the discomfort is generally manageable.

One important thing to know about timing

Skin tags should not be removed while there is an active anal fissure. The blood supply near a fissure is already compromised, and removing skin in that area while the fissure is untreated can lead to a wound that doesn't heal properly. The right order is: treat the fissure first, and then address the tag once the fissure has healed — if it still needs addressing at all.

External haemorrhoids — what to do

Uncomplicated external haemorrhoids are managed with dietary changes, adequate fluids, and warm sitz baths. If a blood clot has formed and you're within 48–72 hours of the pain starting, a surgeon can numb the area with local anaesthetic and remove the clot — this gives immediate, dramatic relief. After 72 hours, the clot is usually starting to resolve on its own, and conservative management (warm baths, pain relief, stool softeners) is generally preferred.

Frequently asked questions