Scarless hair transplants do not cause migraines. Scarless hair transplants only extract healthy hair follicle tissue from the top layer of the head, and generally do not cause damage to the head. Migraine may be related to heredity, environment and mental stress. 1. Heredity: Generally, migraine sufferers have a family history of migraine, and when their parents suffer from migraine, there is a higher chance that they will suffer from migraine. 2. Environment: Sudden cold air, prolonged exposure to ultraviolet rays and noisy sounds can trigger migraine. 3. Mental stress: prolonged stress and nervousness can also induce migraine. When patients have migraine, it is recommended that they go to the hospital in time for examination and diagnosis and under the guidance of doctors for treatment.