Skin tags cause no symptoms unless something rubs or catches them. Most people notice them by touch before they notice them in the mirror.
On brown and Black skin, skin tags are often darker than the surrounding skin and can appear in larger numbers around the neck and under the arms. They are also easy to confuse with dermatosis papulosa nigra — the small dark growths common on the cheeks and neck — which are a different thing and sit flat against the skin rather than hanging off it. Any removal method should be chosen with pigment in mind, because freezing and burning can leave pale or dark marks that last longer than the tag would have.
Skin tags get mistaken for a few other growths. See Lookalikes near the bottom of this page.
A skin tag is made of ordinary skin wrapped around a small core of blood vessels and loose collagen. Friction is the main driver — the skin folds where they appear are exactly the places where skin rubs against skin or clothing all day, and constant low-grade rubbing seems to prompt this small, harmless overgrowth. Genetics matter too. If your parents had a lot of them, you are more likely to.
They are also more common in some situations worth naming plainly. Pregnancy brings them on, often in the second and third trimesters, and some settle after delivery. They are more common in people carrying more weight, largely because there is more skin folding and rubbing. And there is a real association with insulin resistance and type 2 diabetes — having several skin tags is one of the things that makes a doctor consider checking blood sugar, particularly if there is also a velvety darkening of the skin in the armpits or on the neck. That is a reason to have a routine test, not a reason to worry. Plenty of people with skin tags have entirely normal blood sugar, and the tags themselves cause no harm at all.
The honest version: no over-the-counter product removes a skin tag well, and some can burn the skin around it. What follows is what people actually try, graded for what the evidence supports.
Skin tags do not need treating. Go in if:
What the visit gets you: confirmation of what it is, removal in the same appointment in most cases, and the tissue sent to a lab if there is any doubt — which is exactly what you lose if you cut it off yourself.
These all work, they take seconds each, and several tags can be done in one appointment. Because removal is cosmetic, expect to pay for it.
Nothing happens. A tag stays roughly the same size for years. It will not turn into anything, and it will not spread.
The tag is gone immediately. A pinpoint of bleeding is stopped in the room, and a small scab heals over about a week. This is the quickest and most reliable method.
The tag darkens, shrivels and drops off over one to two weeks. Larger ones sometimes need a second go. A pale mark afterwards is common.
A small scab forms and separates over one to two weeks. Bleeding is minimal because the base is sealed as it goes.
Usually a small flat spot that fades over months. On brown and Black skin a darker mark is more likely and can take longer to settle, which is worth raising before having several done at once.
Not in the same place. But new tags can form elsewhere, especially in the same friction-prone areas, and that is not caused by having had any removed.
Skin tags are harmless. Left alone they cause no medical problem at all.
Several small growths turn up in the same places. The floppy stalk is the main clue that something is a skin tag.