A skin tag is a small, soft, flesh-colored growth that hangs off your skin by a thin stalk. These harmless bumps are made up of loosely arranged collagen fibers and blood vessels covered by a layer of skin. They range from 1 mm (about the size of a pinhead) to 5 cm (roughly the size of a grape), though most stay small. Skin tags are one of the most common skin growths in adults, and they’re almost always benign.
What Skin Tags Look and Feel Like
Skin tags are soft and painless to the touch. Unlike warts, which have a rough, bumpy texture and sometimes contain tiny black dots, skin tags are smooth and hang from a narrow base or stalk called a peduncle. They’re typically the same color as your surrounding skin, which distinguishes them from moles (usually brown or black) and warts (often slightly discolored with a cauliflower-like surface).
Most skin tags start very small and may go unnoticed for a while. You might discover one when your fingers brush against it or when jewelry or clothing snags on it. They don’t itch or hurt unless something irritates them, like friction from a necklace or a seatbelt rubbing against your neck.
Where They Typically Appear
Skin tags form in areas where skin rubs against skin or clothing. The most common locations are the armpits, neck, eyelids, groin, inner thighs, and under the breasts. They can also appear on the genitals. These are all spots where natural movement creates repeated friction throughout the day, which is why multiple skin tags often cluster in the same general area.
What Causes Them
Skin tags develop when the body produces extra cells in the skin’s top layers. Friction is the primary trigger, which explains why they favor skin folds and creases. But several other factors increase the likelihood of getting them.
Weight plays a significant role. Carrying extra body weight creates more skin folds and more friction, and research has linked the number of skin tags a person develops to their level of insulin resistance, a condition common in people with higher BMIs. This connection means that skin tags sometimes appear alongside type 2 diabetes or prediabetes, though having a skin tag certainly doesn’t mean you have either condition.
Hormonal changes can also trigger them. Some women notice new skin tags during pregnancy, and the hormones in birth control pills may have a similar effect. Age is another factor: skin tags become more common after 40 and are rare in children.
Genetics matter too. If your parents developed skin tags, you’re more likely to get them.
When a Skin Tag Might Be Something Else
The vast majority of skin tags are completely harmless and require no medical attention. However, not every fleshy bump on your skin is a skin tag. If you notice a growth with variations in color, sudden changes in size, bleeding, or pain, it could be a different type of skin lesion that warrants a closer look from a dermatologist. A true skin tag is uniform in color, soft, and painless. Anything that doesn’t fit that description is worth getting checked.
Removal Options
Skin tags don’t need to be removed for medical reasons. Most people who choose removal do so because a tag is cosmetically bothersome or sits in a spot where it gets snagged or irritated.
Dermatologists use three common methods. Excision (snipping) involves numbing the area and cutting the tag off at its base with sterile scissors or a scalpel. It’s quick and effective, especially for larger tags. Cryotherapy uses liquid nitrogen to freeze the tag, which then falls off on its own within days to weeks. This works well for smaller tags and is a good option when you have several to remove at once. Electrocautery uses controlled heat from an electrical current to burn the tag away after the area is numbed. All three approaches are done in a doctor’s office and involve minimal downtime.
Why DIY Removal Is Risky
Home remedies for skin tags are widely discussed online, but their effectiveness is largely anecdotal. Tea tree oil and apple cider vinegar are popular suggestions, yet there’s little research supporting either one. Tea tree oil is a known cause of allergic skin reactions in some people, and apple cider vinegar can irritate surrounding skin.
Tying off a skin tag with string or using over-the-counter freezing kits carries its own risks: infection, scarring, and incomplete removal. Perhaps the biggest concern is misidentification. What looks like a skin tag to an untrained eye could be a different type of growth entirely, and cutting or freezing it at home means missing a diagnosis that a dermatologist would catch.