Although melanoma is highly malignant, there is a possibility of cure. Patients should keep a positive attitude, choose the right treatment and go to a regular hospital. Melanoma can be divided into benign melanoma and malignant melanoma. Benign melanoma is easier to cure than malignant melanoma. However, its early symptoms are often overlooked. When patients find that melanoma is getting rough and accompanied by flaky flaking. In severe cases, they may even bleed and ooze, itch abnormally, and ulcerate. These are the early symptoms of malignant melanoma, when the above symptoms appear must be treated in time and must not be delayed. The earlier the treatment, the better the effect of treatment. Second, diet therapy Patients should not only external treatment but also internal regulation, the patient’s diet should be diversified and nutrition should be balanced. First of all, patients should eat less protein-rich food, too much protein intake will increase the burden on the intestines, weakening the digestive and absorption function of the intestines. Therefore, patients should reduce the intake of protein appropriately. Secondly, they should eat more foods rich in vitamin C and vitamin A. They should eat more foods that can inhibit the disease, such as cabbage, etc. Eat more dried fruit and seeds rich in nutrients, more fresh green vegetables, and more low-fat foods, such as chicken and lean meat. Patients should avoid spicy and stimulating food, no overeating, no pickled food, no smoking and alcohol. Patients should avoid blind medication, to adhere to scientific treatment methods, scientific diet, in order to maximize the possibility of cure.