Scars refer to keloid scars. Mole removal is divided into chemical cauterization, laser gasification and surgical excision. Generally, there is no scar after removing moles, but due to the different methods of removing moles, as well as if the scar is large in size, deep in degree, or keloid, there will be scarring. 1. Chemical cauterization method: It is to corrode the skin through chemical substances, so that the skin tissue on the surface of the mole is necrotic, and then fall off. It is cheap, but it is difficult to grasp the depth, and it is easy to leave a scar if the point is deep. 2. Laser gasification method: It uses laser energy to decompose and gasify the melanin cells of the mole, so as to achieve the effect of mole removal. The effect is fast and controllable. Smaller moles may not leave scar, but larger moles will have scar. 3. Surgical excision method: the mole is excised in a shuttle shape and then sutured. Although the mole can be removed completely, it is prone to scarring, and there is a risk of hyperplastic scarring for those with scarring. Cosmetic suturing can try to improve the final result. To find out if scarring will remain after mole removal, it is advisable to visit a hospital and consult a doctor about the precautions to be taken.