Different body parts have different hair growth cycles, usually laser hair removal on legs needs to be carried out about 5 times with an interval of 6-8 weeks, basically no hair growth after the operation, i.e. permanent hair removal, and tiny brown hairs can appear at a later stage, which do not affect the beauty and do not need to be treated. Laser hair removal is a non-invasive treatment, it is recommended to use 0-4° ice pack for 10-20 minutes after surgery to reduce the discomfort and promote the elimination of red papules. No special requirements after surgery, need to do a good job of sun protection, to prevent ultraviolet damage to the epidermis, wear long clothes or external shading agent.