The specific number of laser spot removal needs comprehensive consideration, which is related to the nature, location and skin quality of the spot, and also has a certain relationship with the method, period and course of laser spot removal treatment, so it cannot be generalized. Generally, most of the spots in the junction of epidermis and dermis need 2-3 times to be removed, but there are some special types of spots that are more difficult to be removed. 1. Melasma: usually it cannot be completely eradicated, mainly related to endocrine and physical condition, and can only be improved significantly through multiple treatments, with 2-3 times for lighter ones and 5-6 times or even more for deeper ones or melasma with primary disease. The treatment effect is poor and may rebound, aggravate or deepen; 2. Coffee spot: relatively stubborn, usually 3-6 times can be seen to improve, but after surgery about 30% of the population is prone to recurrence and needs repeated treatment; 3. Brown nevus: involves deeper levels, usually located in the junction area of epidermis and dermis or has more pigment in the dermis, at this time the requirements for laser are higher and the treatment times are more, may 8-10 times or even more are needed; 4. Freckles: usually 1-3 times are needed to get rid of them, but a few freckles are related to heredity and easy to recur, and laser treatment can be done again after recurrence. After laser freckle treatment, the specific recurrence is related to personal habits and skin constitution. With the continuous metabolism of the body, the spots formed in the later stage of skin can still be treated by laser removal and facial care. It is recommended to choose a hospital with higher level of medical technology as well as doctor’s skill to avoid the appearance of side effects caused by external factors.