why do we have skin tags
Overview. Skin tags are small growths on the skin that can grow up to a half inch long. They are usually the same color as your skin, or slightly darker. Skin tags are composed of blood vessels and collagen fibers (a kind of protein) surrounded by skin.Theyâre attached to the rest of your skin by a thin or thick stalk.our doctor can probably diagnose your skin tags by looking at your skin. Sometimes what looks like a skin tag is a mole, wart, or other type of harmless growth. However, your doctor might want to do a biopsy by cutting off a skin tag and sending it to the lab for tests.