A shave biopsy is a procedure that involves the partial excision of a tumor or lesion. It is used to remove minor suspicious skin growths in order to determine the type of lesion. A certified dermatologist will shave the lesion’s surface and send it to a pathologist for examination. To halt the bleeding and seal the skin, the incision is usually cauterized. A shave biopsy can also be performed to remove innocuous skin tags and seborrheic keratoses with satisfactory cosmetic results.