Since almost everyone has pigmented moles, it may not be a big deal in a sense, and many of us have hundreds or thousands of pigmented moles, so it is impossible and unnecessary to “eliminate” all of them. Then how can we rehabilitate ourselves? The key is to have a pair of “golden eyes” and know in advance (1) In which parts of the body are the most dangerous pigmented moles or those most likely to become malignant? (2) What are the signs of moles before they become malignant? (3) Each mole should be treated or not, and how to treat it should be “judged” by a professional doctor in a hospital. Here we need to point out that many people are afraid of trouble or greedy for cheap treatment and do not go to hospitals, but go to some beauty salons without medical qualification or find some unlicensed medical stalls on the street to “spot moles”, which not only does not cure but also leaves a big scar; moreover, they should not treat themselves, such as applying some ointment indiscriminately, or Once the malignancy is induced to become melanoma, the lesson is painful! In the past, the “chemical peeling method” was used to erode, burn and dissolve the lesions by applying chemicals such as trichloroacetic acid, nitric acid and borax, because there are certain risks and the scope, depth and degree of erosion are not easy to master. In recent years, this method has been eliminated from use.