Acne marks are post-acne hyperpigmentation, an increase in epidermal melanin due to acne inflammation. Removing back acne marks can be improved or eliminated by general treatment, laser treatment and so on. 1. General treatment: Avoid spicy and stimulating food and greasy food in diet, take light diet principle as the main, usually pay attention to develop good habits, pay attention to the regularity of work and rest. 2. Laser treatment: If the patient’s acne marks are heavy and darker in color, remove them through laser treatment methods such as intense pulsed light under the guidance of a doctor. With back acne marks, it is recommended to go to the regular medical institutions in time, under the guidance of doctors to standardize the treatment.