Skin tags (acrochordons) are commonly occurring, small and benign skin growths that can measure up to half an inch in length. They are usually the same colour as the skin or a bit darker. Skin tags are made of blood vessels and collagen fibres surrounded by skin and attached to the rest of the skin by a stalk. They mostly appear on the eyelids, neck, breast, armpits, stomach and groin, and are harmless. People are more prone to developing skin tags if they are obese, pregnant, elderly and/or diabetic. The exact reason behind skin tags is unknown but it is widely believed that friction between skin folds or skin and clothes can cause their growth.