Mohs, or Mohs Micrographic Surgery, is a highly effective technique for removing certain types of skin cancer, or skin cancers that are located in cosmetically or functionally high risk areas of the body.  The surgeon removes the lesion, then immediately looks at it under a microscope to make sure it has been completely removed.  If any of the cancer remains, the process is repeated until the lesion is totally removed.  Each time the surgeon removes tissue is called a ‘stage’.  This technique was created by surgeon Frederic Mohs in 1938, and is widely considered to be the most effective way to remove certain skin cancers.  The Mohs process preserves as much of the healthy tissue as possible, while ensuring complete removal of the lesion.