Tattoo removal is currently a common method of photoelectric treatment, laser tattoo removal has a chance of leaving a scar, which needs to be analyzed according to the depth of the patient’s tattoo, physical condition and other circumstances. 1. The situation that will leave a scar: if the patient’s tattoo is deeper, requiring greater energy and multiple treatments, it may leave a scar. Improper choice of energy when laser tattoo cleaning or improper post-treatment care will also leave pigmentation or scarring. In addition, if the patient himself belongs to the keloid body, once there is a small wound on the body, the wound will be enlarged and form scar tissue. 2. Will not leave scars: If the patient’s tattoo is shallow, and scientific standardized care after treatment, and the patient himself does not belong to the keloid body, generally will not leave scars. But after treatment need to pay attention to sunscreen, so as not to have pigmentation in the area. It is recommended to remove the need to wash tattoos patients are recommended to regular medical institutions to avoid adverse consequences.