Skin Tags: what it usually means
Also searched as: acrochordons, skin polyps, fibroepithelial polyps · Updated 19 Aug 2026 · Educational — not medical advice
The short answer: Skin tags are small, soft, harmless growths of skin that commonly appear where skin rubs against skin or clothing, such as the neck, armpits, and eyelids. They become more common with age, weight gain, and insulin resistance, but they are not dangerous and don't turn into skin cancer. A tag that changes color, bleeds without being caught on something, or grows rapidly should be checked to confirm it's truly a skin tag.
See a doctor promptly if…
A tag that changes color, especially becoming very dark or black.
Rapid growth in size or a sudden increase in the number of new tags.
Bleeding, pain, or irritation not explained by the tag being caught on jewelry or clothing.
Uncertainty about whether a growth is really a skin tag versus another type of skin lesion.
Many new skin tags appearing alongside unexplained weight gain or dark, velvety skin patches, which can point to insulin resistance.
Common causes
- Skin friction — Repeated rubbing of skin against skin or clothing in areas like the neck and armpits encourages skin tags to form.
- Aging — Skin tags become more common as skin ages and loses some elasticity.
- Weight gain — Extra skin folds increase friction, which is why skin tags are more common with higher body weight.
- Insulin resistance — Skin tags are more frequent in people with insulin resistance or type 2 diabetes, likely related to elevated insulin levels affecting skin cell growth.
- Pregnancy — Hormonal changes and weight gain during pregnancy can trigger new skin tags.
- Genetics — A tendency to develop skin tags can run in families.
What helps
- Leave skin tags alone rather than trying to cut, tie off, or pull them at home, which risks bleeding and infection.
- Wear clothing or jewelry that avoids repeated friction against tags in sensitive areas.
- If a tag is cosmetically bothersome or gets caught often, ask a dermatologist about simple in-office removal.
- Keep the area clean and dry if a tag becomes irritated from rubbing.
Which doctor to consult
A dermatologist can confirm a growth is a harmless skin tag rather than another type of lesion, and remove it quickly and safely in-office if desired.
Lab tests doctors often check
If this symptom persists, these are the values a doctor commonly looks at — and if you already have a report, the analyzer explains where you stand.
Questions people ask
Are skin tags dangerous or a sign of cancer?
No — skin tags themselves are benign and do not turn into skin cancer. The main reason to have one checked is if it changes in color, size, or shape unexpectedly, since that raises the question of whether it's actually a skin tag or a different kind of growth that needs a closer look.
Why do I keep getting more skin tags over time?
New skin tags commonly appear with ongoing friction, weight changes, aging skin, or insulin resistance, so if any of those factors are present, more tags tend to keep forming. Addressing modifiable factors like weight and friction can slow new ones, though existing tags won't disappear without removal.
Related symptoms
This guide is educational and doesn't replace a clinical assessment. If a symptom is severe, rapidly worsening, or worrying you, see a doctor — being checked and reassured is never a wasted visit.