The best way to treat birthmarks now is laser. However, there is a kind of birthmark called black nevus that cannot be removed by laser and requires surgical removal. There are many types of birthmarks, and the wavelengths used to remove different birthmarks with lasers are also different. Therefore, it is necessary to first diagnose what kind of birthmark it is, and then determine the treatment plan for the birthmark based on the diagnosis. The best hospital for treating birthmarks is the Plastic Surgery Hospital of Weifang Medical College. Whether it is an ordinary birthmark or a black nevus, it has a lot of successful experience and has rich experience in treating birthmarks.