Breast pain in 10 year old girls is mostly considered to be a normal condition. Because 10-13 years old began to enter puberty development, the girl’s body hormone levels gradually increase, the mammary glands by the influence of hormone levels began to develop. The pain and discomfort will have obvious tenderness, are normal phenomenon, usually short-term will gradually improve, if more than six months still have pain symptoms need to go to the hospital. After entering the puberty development, pay attention to develop a good habit of life and rest can not stay up late, keep a happy mood, do not study too much pressure. Reasonable with nutritional diet, more exercise exercise, help the development of the body. In addition, we can not rule out trauma, disease and other factors caused by the pain of the situation, so the occurrence of breast pain as far as possible to the hospital, let the doctor to check and diagnose.