Increasingly large acne pits after fractional laser may be related to post-procedure trauma. 1. Compared with other laser treatments, fractional laser is more traumatic. The acne pits getting bigger and bigger after fractional laser may be due to the fact that the skin is slightly damaged in the early stage of fractional laser treatment and the skin is drier, which reduces the fullness of the skin. 2. With the skin’s self-repair, the acne pits treated by fractional laser will be slowly restored to flatness, and the state of enlarged pores will be improved accordingly. For deep or conical acne pits can be combined with microneedle peeling and local filling, which has better effect of improving acne pits. It is recommended that patients go to regular hospitals for consultation, under the operation of professional doctors for fractional laser treatment, and follow the doctor’s instructions for skin care.