Malignant melanoma

Malignant melanoma occurs in white people. Australia's QueenS-Land is the world's famous high incidence area of ​​malignant melanoma. The incidence of malignant melanoma in China is not high, but due to insufficient understanding of the severity of doctors and patients, it is often too late at the time of consultation, and the treatment effect is extremely unsatisfactory. The disease occurs in 30 to 60 years old. Spity, a rare juvenile malignant melanoma, has been reported in 13 patients aged 1.5 to 12 years. Younger people generally have lower malignancy and better prognosis after surgical resection. There is almost no difference in the gender of the onset, except that the location of the lesion is related to gender. Most of the males occur in the trunk, more females than males in the limbs, and facial freckled melanoma is more common in elderly women.