A skin tag, or acrochordon, is a small piece of skin often characterised by hanging off the body with a fleshy stalk. Generally, areas of the body that receive a lot of friction develop skin tags, most often appearing in the underarm, neck, and groin areas.
Fortunately, skin tags are benign so there are no medical concerns associated with it. However, these tags can be annoying and can also cause a concern on the physical appearance, which is why most people prefer to have them removed.
One of the biggest problems with skin tags is that they can bleed if snagged, which may cause pain because they have their own blood supply.