14-year-old menstruation 10 days early may be physiological reasons or endocrine disorders and other factors. 1. Physiological reasons: 14-year-old girls, menstruation is a sign of puberty, at this time the body’s hormone levels have not been completely stabilized, the hypothalamus pituitary ovary axis function is not perfect, so it is easy to cause menstruation in advance of the situation, there may also be delayed menstruation and so on. 2. Endocrine disorders: there are many reasons for menstrual irregularities, especially the endocrine disorders caused by abnormalities in ovarian function due to diseases. Generally, 14-year-old girls have a heavy study load and are prone to poor rest, nervousness and stress, which can also lead to endocrine disorders and cause menstruation to occur 10 days early. The 14-year-old menstruation 10 days early is recommended to pay attention to the regularity of work and rest, do a good job of hygiene care, avoid staying up all night, appropriate stress relief, maintain a good mood, can help to improve. In addition, the 14-year-old girl menstruation 10 days early there are other reasons, if the persistence is not relieved, it is recommended to go to the hospital in a timely manner to check, clear the cause of the disease and follow the doctor’s instructions to deal with the treatment.