The growth of moles on the body is divided into many kinds of causes, as follows: First, the more common are common warts, filiform warts, flat warts caused by infection with human papilloma virus, warts raised on the surface of the skin, with a slight itching sensation or no conscious symptoms when touched by hand. The second, simple skin wart, because the skin metabolism proliferation after the formation of local hyperplasia, will not expand on its own. Thirdly, simple lymphoma, which is an epidermal change formed after the proliferation of own lymphatic tissue, does not hurt or itch when touched by hand on the surface, and is softer to the touch than normal skin. The treatment method is different for each kind of hyperplasia. If it is human papilloma virus infection, you can choose laser and freezing to remove it with recombinant human interferon alpha-2b gel. If it is a simple superfluous skin, you can choose CO2 laser cautery. Lymphoma is recommended to be surgically removed and pathologically tested.