Large black moles on the body can be removed by surgery. Many patients have black moles on their bodies, which can be removed by surgical treatment. Moles need to be distinguished from melanoma. Generally, melanoma has untidy edges, asymmetry on both sides, irregular shape and larger size; while ordinary moles have smooth edges and clearer boundaries. In addition, the surface of melanoma is rough, and there may be bleeding, ulcers, and the lesions are often higher than the skin, but it is difficult to make differential diagnosis simply by appearance. Some skin moles may turn into malignant melanoma, so if there are moles in the body, try to use surgical excision as much as possible to treat them. Smaller moles can be treated by laser therapy, but laser therapy is prone to recurrence.