Skin tags, also called acrochordons, are a very common skin growth.  They are not cancerous.  25% of all adults have at least one skin tag!  If someone in your family has skin tags, it is likely that you will eventually develop them.

Skin tags are simply an outgrowth of normal skin.  They are usually the same color as the rest of your skin, although they can be slightly lighter or darker.  They usually occur under the arms, on the neck, or in the groin area.  They may become irritated by clothing, friction, jewelry.  They can become painful after any trauma such as being torn.