Skin tags have to be one of the most common blemishes I see. You notice one. A few months later, there’s another. Then a small cluster, and clients ask me: why do I keep getting these, and is there anything I can do? This may answer it for you… Friction is the biggest culprit Skin tags form in areas where skin rubs against skin or against clothing. That’s why they so often appear on the neck (necklaces, collars), under the arms, around the bra line, on the eyelids, in the groin and under the breasts. If you’re prone to them, anywhere with regular friction is a likely spot. Genetics play