11-year-old menstruation should pay attention to: 1. Hygiene. Menstruation should try to avoid tub bathing, do not go swimming in public pools, pay attention to diligent change of underwear, and exposure to the sun. You should also pay attention to the choice of breathable sanitary napkins during menstruation and change them regularly. 2. diet. It is not recommended to eat cold, spicy food during menstruation, you can properly increase the intake of vegetables and fruits, but also eat more protein-rich food. You can also eat chocolate and brown sugar water during your period, but do not drink brown sugar water when your menstrual flow is too much. 3, exercise. The patient can take appropriate exercise such as walking, but not strenuous exercise or physical labor, and to ensure adequate sleep, rest attention. 4, the mentality. Keep a happy mood, the patient appears irritable, sleepy and weak, etc., is a normal phenomenon, pay attention to adjust the state of mind, do not worry too much.