Skin tags are common, benign skin growths. They typically range from a pinhead to several millimeters, though some can grow larger, up to 1-2 centimeters. These growths can be flesh-colored or slightly brownish, with a smooth or irregular surface, often protruding from the skin on a narrow stalk. They commonly form in areas where skin rubs against skin or clothing, such as the eyelids, neck, armpits, groin, or under the breasts.
Do Skin Tags Multiply?
Skin tags do not “spread” like a rash or infection. New skin tags can appear in various locations on an individual’s body over time. This is a manifestation of underlying predispositions that make an individual more prone to developing them. The formation of these new tags is linked to factors like friction and certain physiological conditions, leading to the growth of excess skin cells and collagen fibers in new areas.
Are Skin Tags Contagious?
Skin tags are not contagious and cannot be transmitted from person to person through physical contact. They are non-cancerous growths not caused by viruses, bacteria, or other pathogens. Unlike certain viral skin conditions, such as warts (caused by HPV), skin tags are purely individual growths.
Factors Associated with Skin Tag Formation
Several factors are associated with the formation of new skin tags. Friction is a primary factor, as skin tags frequently develop in skin folds or areas where skin consistently rubs against skin, clothing, or jewelry. Genetic predisposition also plays a role, meaning individuals with a family history of skin tags are more likely to develop them.
Age is another contributing factor; skin tags become more common in middle-aged and older adults, with prevalence increasing significantly after midlife. Hormonal changes, such as those occurring during pregnancy, can also lead to an increased likelihood of skin tag formation. Conditions like obesity, insulin resistance, and type 2 diabetes are also linked to their development, possibly due to increased skin folds and metabolic changes affecting skin cells.
When to Consult a Doctor
While skin tags are generally harmless, consulting a doctor is advisable under certain circumstances. You should seek medical advice if a skin tag changes in size, shape, or color, or if it becomes painful, itchy, or starts bleeding. These changes could indicate that the growth is not a typical skin tag or that it has become irritated or infected.
A healthcare professional can accurately diagnose the growth and rule out other skin conditions that might resemble skin tags, including more serious concerns like skin cancer. If a skin tag causes discomfort due to rubbing on clothing or jewelry, or if it is a cosmetic concern, professional removal options are available and should be performed by a dermatologist or trained medical professional.