Acrochordons are harmless and do not require removal. Typical skin tags can be removed for comfort or cosmetic purposes either by scissor excision, electrocautery (burning), or cryosurgery (freezing). Skin tags with long, narrow stalks can become twisted, cutting off the blood supply and abruptly turning the tag dark brown or black. If a skin tag appears that it is changing or becomes painful, it should be examined by a dermatologist to exclude other, potentially harmful diagnoses.
With smaller nevi, the growth is cut or ‘shaved’ off flush with the skin with a scalpel or surgical scissors,while larger moles may require cutting out and stitching of wound edges. Very large nevi may call for gradual removal, in which case your physician will remove a little more at each appointment until the entire growth is removed. This is a more serious procedure, calling for a skin graft from another part of the body.