Skin tags, or acrochordons, are common benign skin growths. They often appear in areas where skin rubs against skin or clothing. Their color, size and shape vary, so a photograph or quick self-check cannot reliably identify every growth. If a spot changes, hurts, bleeds or is uncertain, ask a clinician to examine it. AAD · NHS
What does a skin tag look like?
Many skin tags are soft and hang from a stalk, but others sit closer to the skin. They may match the surrounding skin or look darker or pink. Common locations include the neck, underarms, eyelids and skin folds. These features are descriptions, not a way to diagnose a lesion. Warts, moles and other growths may look similar to a non-specialist. AAD · NHS
What causes skin tags?
The exact cause is not always known. Friction in skin folds may contribute. The AAD also describes associations with pregnancy, weight, metabolic conditions and family history; an association does not mean that a particular tag proves any of these conditions. AAD · StatPearls
Do skin tags need to be removed?
Usually not. A confirmed skin tag is generally harmless. People may seek assessment if a growth is irritated, painful, bleeding or affecting vision. A dermatologist can confirm the diagnosis and discuss whether removal is appropriate. AAD
When should a growth be checked?
The NHS advises a GP visit if a presumed skin tag gets bigger, becomes painful, bleeds or many tags appear. AAD cautions that a growth mistaken for a tag may be another condition, including skin cancer. Seek professional assessment before any removal when the identity of a spot is uncertain. NHS · AAD
Practical takeaway
A skin tag is usually harmless, but appearance alone is not a diagnosis. The safest first step for a concerning or uncertain growth is professional identification. Read Skin Tag Removal Methods Explained after the diagnosis is clear.
Frequently asked questions
Is a skin tag the same as a mole?
No. They are different types of growth, although they can be confused. A clinician can distinguish them. NHS
Can skin tags appear in groups?
Yes. The NHS recommends assessment if many develop. NHS
Does every skin tag require treatment?
No. A confirmed tag often needs no removal. AAD
Can I identify one from a photo?
A photo cannot replace a clinical evaluation when a growth is uncertain or changing. AAD