What is a skin tag?

A skin tag is a common, acquired benign skin growth that looks like a small piece of hanging skin. Skin tags are often described as bits of skin- or flesh-colored tissue that projects from the surrounding skin from a small, narrow stalk. They typically occur in characteristic locations including the neck, underarms, eyelids, and under the breasts (especially where underwire bras rub directly beneath the breasts). Although skin tags may vary somewhat in appearance, they are usually smooth or slightly wrinkled and irregular, flesh-colored or slightly more brown, and hang from the skin by a small stalk. Early or beginning skin tags may be as small as a flattened pinpoint-sized bump around the neck. Some skin tags may be as large as a big grape.

Where do skin tags occur?

Skin tags can occur almost anywhere there is skin. However, favorite areas for tags are the eyelids, neck, armpits, upper chest (particularly under the female breasts), and groin folds. Tags are typically thought to occur in characteristic locations where skin rubs against skin or clothing.

Who tends to get skin tags?

Nearly half of the population is reported to have skin tags at some time. Although tags are generally acquired (not present at birth) and may occur in anyone, more often they arise in adulthood. They are much more common in middle age and they tend to increase in prevalence up to age 60. Children and toddlers may also develop skin tags in the underarm and neck areas. Since they are thought to arise more readily in areas of skin friction or rubbing, tags are also more common in overweight people.

Picture of skin tags

Hormone elevations, such as those seen during pregnancy, may cause an increase in the formation of skin tags, as skin tags are more frequent in pregnant women. Tags may be easily removed during or after pregnancy.

Skin tags are a benign condition and not directly associated with any other major medical conditions, since tags are commonly found on healthy people.

Is a skin tag a tumor?

Skin tags are a type of growth or tumor, albeit a completely benign and harmless one. Tags are not cancerous (malignant) and not found to have potential to become cancerous if left untreated.

What does a skin tag look like under a microscope?

The outer layer of the skin (the epidermis) shows overgrowth (hyperplasia), and it encloses an underlying layer of skin (the dermis) in which the normally-present collagen fibers appear abnormally loose and swollen. Usually there are no hairs, moles, or other skin structures present in skin tags.

What problems do skin tags cause?

These tiny skin growths generally cause no symptoms unless they are repeatedly irritated as, for example, by the collar or in the groin. Cosmetic removal for unsightly appearance is perhaps the most common reason they are removed. Occasionally, a tag may require removal because it has become irritated and red from bleeding (hemorrhage) or black from twisting and dying of the skin tissue (necrosis). Sometimes they may become snagged by clothing, jewelry, pets, or seatbelts, causing pain or discomfort. Overall these are very benign growths that have no cancer (malignant) potential.

Occasionally a tag may spontaneously fall off without any pain or discomfort. This may occur after the tag has twisted on itself at the stalk base, interrupting the blood flow to the tag.