Pregnancy weight gain is another possible cause. They’re most prevalent in older people and expectant mothers, likely spurred on by hormonal changes (and you’ve got plenty of those going on right now). Skin tags are caused by the hyperactive growth of your outer layer of skin. In some cases a “catch” on clothing can cause it to bleed, Trusted Source National Institutes of Health, National Library of Medicine, National Center for Biotechnology Information Skin Tags See All Sources which can be uncomfortable and a possible reason to have it removed by your dermatologist (a simple procedure done in office).
Luckily, skin tags are also usually painless unless clothing or jewelry rubs up against the skin tag, causing it to become twisted, irritated or inflamed. If you’re concerned about whether or not you actually have a skin tag or something else, you should consult a dermatologist. Skin tags are noncancerous and don’t get bigger or change over time.
A skin tag is a small growth of tissue that sticks out beyond the surface of the skin.
