It recently has bled and become larger than normal due to increased physical activity. This is really embarrassing. Tags are literally out pouches of skin that grow slowly over time. They range in size from a millimeter to about ten millimeters. Typically each one has a narrow neck and a broader top resembling a tiny, deflated balloon.
Tags grow in the region of the neck, armpit and groin.
They never become cancerous. Anecdotally I think they grow and multiply when ones weight increases. A small amount of anesthetic is injected under the tag. It is painlessly clipped with scissors or shaved off with a scalpel. Minor bleeding is easily controlled with a chemical called aluminum chloride or direct pressure.