A hard abdomen without menstruation is mainly considered to be associated with underdeveloped body, endocrine disorders, early pregnancy, uterine fibroids, etc. At this time, the diagnosis should be made by combining specific information such as the patient’s age, medical history and examination results. Common causes and treatment methods 1, the body is not well developed: if the patient is less than 16 years old, no sexual history, the abdomen is hard and does not come to menstruation is considered to be caused by the ovarian gonadal axis is not well developed. At this time can wait first, usually with the gradual development of the ovarian gonadal axis, the patient will become normal menstruation, or can be under the guidance of professional doctors, taking motherwort granules and other drugs to promote menstruation; 2, endocrine disorders: improper diet, irregular work and rest, mental stress and other factors, can lead to endocrine disorders, and then appear small abdominal hard, delayed menstruation and other symptoms, some patients can also be accompanied by skin Some patients may also have symptoms such as rough skin and irritability. At this time, patients should relax, pay attention to rest, can be under the guidance of professional doctors to use auxiliary physical therapy and other methods of treatment, it is recommended that patients strengthen exercise, enhance physical fitness, reduce the chance of endocrine disorders; 3, early pregnancy: pregnancy can also lead to hardening of the abdomen, with the growth of the fetus, the uterine cavity is compressed, while the uterine ligament is stretched, thus making the abdomen hard. This is a normal physiological phenomenon, patients do not have to worry too much; 4, uterine fibroids: is due to the formation of benign tumors formed by the proliferation of smooth muscle tissue of the uterus, some patients can appear abnormal menstruation, abdominal lumps, increased leucorrhea, lower abdominal swelling and other symptoms, ultrasound examination to confirm the diagnosis, and take the appropriate surgery to remove fibroids.