Melanoma is a relatively serious malignant tumor, and its cure rate is mainly related to the degree of melanoma lesions. Melanoma can be divided into four stages, and the cure rate of stage I melanoma can be as high as 99%, because stage I melanoma does not have spread and metastasis, so it can be removed directly by surgery, and the cure rate is relatively high. The survival rate of stage II will be relatively changed, but there is no metastasis, and its survival rate is also relatively high. When melanoma progresses to stage III, its five-year survival rate is as high as 80%. After melanoma enters stage IV, its five-year survival rate can only reach about 10%. Stage I is the early stage of melanoma and the best time for surgical treatment. Stage III melanoma has lymphatic metastasis, and stage IV melanoma has metastasized to other organs and there is no way to treat surgically, only systemic radiotherapy and chemotherapy.