Depending on their size, location, and characteristics, dermatologists have several methods for removing moles or skin tags. Your dermatologist may recommend performing a biopsy on suspicious-looking moles to rule out the possibility of cancer. They remove benign moles by excising them (removing them surgically) or with a shave excision technique that doesn't require stitches. Cryotherapy—freezing the mole or skin tag—is another option.