Moles and skin tags are both extremely common skin lesions, however they differ in various aspects, such as texture and size. A mole is a skin growth that appears on different parts of the body and face. Moles can be flat or raised and usually have different shades of black and brown. Unlike skin tags, moles have a high risk of becoming cancerous. It is important to get your mole looked at by a medical professional. Skin tags are harmless skin growths that are made of cells that grow together in clusters in a raised manner. Skin tags are always raised, never flat. Skin tags tend to grow in areas where skin rubs against each other and causes friction.