痣是常见的皮肤良性色素病变,每个人身上的皮肤或多或少都有痣的存在。而恶性黑色素瘤却是恶性肿瘤之一,且恶性程度比较高。痣与恶性黑色素瘤之间存在着密切的关系。对痣的认识不清,处理不当,常会引起痣的恶变,诱发恶性黑色素瘤的发生。而恶性黑色素瘤的预后很差,因此,对痣的正确认识和处理是很重要的。 Radon is a common benign pigmented lesion of the skin. The skin of each individual has a more or less flawed skin. Malignant melanoma, however, is one of the malignant tumors and has a high degree of malignancy. There is a close relationship between sputum and malignant melanoma. The unclear understanding and improper handling of phlegm often cause malignant transformation of phlegm and induce malignant melanoma. The prognosis of malignant melanoma is very poor. Therefore, it is very important to correctly understand and handle it.