If a small skin cancer is removed using Mohs surgery and the resulting defect is small, it may be allowed to heal on its own much like when a person scrapes their elbows or knees. If the defect is too large or in a location which is not amenable to healing on its own, then a reconstructive technique needs to be used in order to provide the best aesthetic and functional result. There are several types of reconstructive techniques depending on the size and location of the defect. Please see the “Types of reconstructive procedures” section below for more details.