Nevus can be divided into broad sense and narrow sense, and the broad sense includes all kinds of congenital and acquired melanocyte nevus and sebaceous nevus. Medical "nevus" is a narrow sense, also known as nevus cell nevus, pigmented nevus, melanocyte nevus or common acquired melanocyte nevus, excluding congenital melanocyte nevus.

Melanoma refers to malignant pigmented nevus, which develops from borderline nevus or mixed nevus.

Therefore, moles can be removed by laser, and melanoma is best removed by surgery. Germany and the United States also have departments that provide surgery to remove moles. You can just let them solve it once and for all. Germany and the United States were founded 10 years ago, and the technology is also very good.