High-risk objects

        Those who have any of the following high-risk factors are all high-risk subjects for skin cancer:
        1. Frequent exposure to the sun and ultraviolet radiation;
        2. Long-term exposure to chemical substances, such as asphalt and tar derivatives;
        3. Suffering from chronic ulcers, unhealed scars, fistulas, discoid lupus erythematosus, radiation dermatitis, etc.;
        4. Have had skin cancer;
        5. Birthmarks that continue to grow or have recently grown significantly;
        6. Moles on the soles, palms and other areas that are easy to touch and rub.
 
Screening recommendations
        Clinical physical examination, once a year.
        For those with high-risk factors, a professional doctor will conduct a skin examination, including moles, birthmarks, or other abnormally pigmented areas, record changes in color, size, shape, or texture, and perform a biopsy if necessary.
 
Prevention advice

        1. Regular skin self-examination (compared with a ruler, take photos for backup);
        2. Do physical or chemical sun protection outdoors and avoid exposure to the sun;
        3. Do not trim or break your toes or skin spots repeatedly;
        4. Eat a reasonable diet and avoid spicy and irritating foods.