Pigmentation can be divided into congenital pigmentation and acquired pigmentation, with different treatment methods. At present, black, coffee and brown pigmentation spots are mostly treated by laser. Whether laser spot removal will rebound or not is mainly related to the type of pigmentation, such as nevus of Ota, which generally does not rebound after treatment; coffee spot and freckle are mainly related to individual differences and ultraviolet radiation, which may recur after treatment; melasma is an acquired pigmentation, which is mainly related to female endocrine and sun exposure, and laser treatment with medication can achieve better prevention and control, but may rebound. Usually, there is no rebound after laser spot removal, so beauty lovers do not need to worry too much. Laser spot removal is mainly through some fractional laser or Q-switched laser to remove pigment spots on the face. Rebound is a common phenomenon because laser can only fade the pigmentation symptoms, but not prevent the hormone disorder in the body, which is one of the causes of pigmentation. Therefore, after laser pigmentation treatment, you should pay attention to the moisturizing care of the skin, strict sun protection, keep a happy mood, pay attention to the taboo, do not eat spicy, oily and other stimulating foods, and also take some oral medications to reduce pigmentation.