The time of pigmentation fading after laser spot removal is affected by many factors, such as personal constitution, postoperative care, and the size and depth of pigmentation, etc. The short time is about 1~2 months, and the long time may be more than 6 months. 1. Personal constitution. After laser spot removal, there will be a period of anti-blackness, and the duration of this period is about 1~2 months. If the skin has strong repair ability and strong metabolism, the period of anti-blackness will be relatively short. 2. Post-operative care. Excessive stimulation, infection and sun exposure are the main factors leading to the appearance of hyperpigmentation. Keeping the local skin clean and dry after the operation, avoiding infection and paying attention to sun protection can reduce the formation of hyperpigmentation and shorten the dissipation time of hyperpigmentation. 3. The size and depth of hyperpigmentation. Comparing from the size and depth of color, for the deeper color and larger area of pigmentation, the time of its dissipation will certainly be prolonged appropriately, and the longest one even needs more than 6 months. There are more factors affecting the time for pigmentation to subside after laser spot removal, and pigment absorption and metabolism can be accelerated by medication or photoelectric treatment, but it is necessary to go to regular medical institutions for treatment.