According to statistics, the number of skin cancer cases of all types is on the rise worldwide. In the United States, 5 million people are diagnosed with skin cancer every year, which is equivalent to 1 in 5 people may be affected by the disease, and on average, 1 person dies from melanoma every 57 minutes. In China, although the incidence of skin cancer is still relatively low, it is still urgent to raise the awareness and vigilance of skin cancer diseases. Among skin cancers, basal cell carcinoma is the most common, which looks like a non-healing ulcer with translucent, waxy or crusty skin, and it occurs on the head, face, ears, hands and back; it progresses slowly but can affect local lymph nodes, bones, lungs and liver. Squamous cell carcinoma, which looks like a flat, erythematous, crusty surface, or a non-healing ulcer, or resembles a lump; translucent, waxy or crusty skin, more likely to metastasize to lymph nodes, bones and brain tissue than basal cell carcinoma. Melanoma: It looks like a mole that can change color or deformation, or it may look like a skin lesion that cannot be healed, commonly found on trunk and legs, with high malignancy, early metastasis and poor prognosis. Enhance skin cancer prevention awareness 1. Outdoor sun protection is important; 2. Avoid going out from 10:00am-3:00pm when the sun is strong; 3. Broad-brimmed hats are good for facial sun protection; 4. Check regularly for suspected skin damage or lesions; 5. Consult dermatologists when you find suspicious skin lesions or have any concerns.