Skin tags are small, soft growths that form on the surface of the skin. They are usually flesh-colored, though some may appear slightly darker depending on a person’s natural skin tone. These growths often hang from the skin by a thin stalk, which gives them their distinctive appearance. Although they may look unusual at first glance, skin tags are extremely common and are generally harmless.
Many people first notice skin tags during adulthood. A small bump may seem to appear suddenly, leading to questions about what caused it. In most cases, however, these growths develop slowly and only become noticeable once they reach a certain size. Because of this gradual process, they can feel like a surprise when they are finally seen or felt.
According to specialists in Dermatology, skin tags rarely form because of a single reason. Instead, they tend to appear due to a combination of influences, including genetics, hormonal shifts, and everyday physical factors. Understanding these elements can help explain why some people develop them more often and why they commonly appear in particular areas of the body.
One of the most widely recognized contributors to skin tag development is repeated friction. When skin rubs against other skin or against clothing over long periods, the constant contact may encourage small growths to form. This is why skin tags often appear in areas such as the neck, underarms, eyelids, or folds of skin—places where movement and contact happen frequently. Over time, this repeated irritation can lead to the formation of the soft, hanging projections known as skin tags.