Double eyelid hyperplasia generally refers to scarring after double eyelid surgery, and usually takes 1~3 months to subside, the exact time needs to be judged according to the actual situation of the patient. Double eyelid surgery is a common cosmetic surgery, and most patients will experience scarring after surgery, which is a common reaction after surgery. Patients with scarring do not need to worry too much, usually between 1~3 months, the swelling of the scar tissue will gradually subside, and it will start to flatten and soften, and then gradually return to normal skin. Due to the large individual differences between different patients, the exact time of receding cannot be generalized. Some patients with faster recovery may not need 1 month for the scar tissue to recede, while some patients with slower recovery may need half a year or even a year for the scar tissue to recede. If the patient does not pay attention to eye protection after the surgery, which may lead to infection, the time for the scar tissue to recede will also be prolonged accordingly. It is recommended that patients with scarring after double eyelid surgery strictly follow the doctor’s instructions for postoperative care. If the scar tissue does not soften for a long time, or if there is redness, swelling, pain, etc., it is necessary to consult a doctor in a timely manner to clarify the specific cause.