Birthmark is a very common skin proliferation disease in clinical dermatology, black birthmark will seriously affect the patient’s beauty, clinical mainly choose the following treatment options: first, laser treatment, laser can selectively destroy the lesion tissue, and will not affect the normal growth of the surrounding skin, so as to achieve the effect of removing birthmarks, laser treatment should pay attention to sun protection, relatively small risk. The second, surgical removal, surgical treatment can directly remove the birthmark, under the role of lidocaine anesthesia for removal, simple, convenient, fast and less risky, small area of birthmark through surgical removal can be a one-time cure, large area of birthmark can be staged surgical treatment.