Scrotum long white hair is considered to be caused by non-disease factors (such as aging, mental stress, etc.) or disease factors (such as malnutrition, albinism, etc.), it is recommended to seek medical attention in a timely manner. 1. Non-disease factors: (1) Ageing: As people grow older, the activity of the enzyme laminase in melanocytes will gradually decrease or even be lost, resulting in the growth of white hair on the scrotum. (2) mental stress: mental stress, excessive fatigue, etc., can affect the functioning of the body and the synthesis of melanocytes, resulting in scrotum long white hair. 2. Disease factors: (1) malnutrition: unbalanced diet or excessive dieting can trigger malnutrition, so that the body lacks nutrients (especially protein), thus affecting melanin synthesis, triggering the scrotum long white hairs, in addition, the patient will also appear to lose weight, fatigue and other phenomena. (2) albinism: a hereditary disease, the patient’s body lacks or no melanin formation, so that the patient’s scrotum long white hair. In addition, there are many other reasons can cause scrotum long white hair (such as vitiligo), it is recommended that patients seek medical attention in a timely manner to exclude physiological factors, and then follow the doctor’s instructions on the cause of the treatment.