Wound hyperpigmentation can be removed through life and diet, medication, physical therapy and other measures. 1. Dietary management: keep local skin clean and hygienic, strengthen skin care, pay attention to sun protection, eat more fresh vegetables and fruits, and eat less fried and pickled products. 2. Drug treatment: you can use topical hydroquinone cream, cumquat chloride ointment, vitamin C and other drugs have a certain auxiliary effect. 3. Physical therapy: you can also take physical therapy measures such as laser to remove pigmentation, destroying melanin through the thermal effect of laser. Wound hyperpigmentation should be timely medical treatment, under the guidance of the doctor, to avoid their own abuse of drugs, so as not to cause adverse reactions.