The incidence rate of skin cancer in China is very low, and it can be well prevented by practicing good living habits. Here we look at what are the early symptoms of skin cancer: What are the early symptoms of skin cancer Skin cancer can be 100% cured if it is detected by patients in its early stage, but it can be fatal if it is not detected at an extremely early stage. Therefore, early detection of signs of skin malignancy has its special significance. Let’s introduce the early characteristics of skin cancer and the methods of self-examination. The first type of skin cancer is malignant melanoma, which has four characteristics: ① Asymmetry. Moles with asymmetric shape and uneven surface should be noticed. (2) Rough edges and sometimes cracks, which are the opposite of normal nevi with smooth edges. ③More often have mixed colors, especially brown or ink-black, and sometimes red, white and blue. ④More than 1/4 cm in size. The second and third types of skin cancer are basal cell carcinoma and squamous cell carcinoma, which have four characteristics: ① If there are protruding growths on sun-exposed areas, such as head, neck, back of hands, chest, and back, and they do not disappear for a long time, we should pay attention to them. You should also be alert to acne that does not disappear for a long time. (2) Bleeding condition. These two types of skin cancers will bleed after slight stimulation, while most of the skin diseases do not have this feature. ③Crusting condition. If the skin crusts for no reason, especially if the crusts do not disappear for a long time afterwards, it is important to pay high attention. ④For those with scaly skin surface with secretion or hard nodules on the surface or those that do not heal, attention should be drawn to them.