The methods for accumulation of blood in the uterine cavity are: first, mild accumulation of blood in the uterine cavity below 3 ml, anti-inflammatory drugs such as cefoperazone antibiotics, as well as broken blood flow, uterine hemostatic granules for anti-inflammatory, hemostatic treatment, 3-5 days can be relieved, can be temporarily observed. Second, if there is more blood in the uterine cavity, women with lower abdominal pain is not improved by drug treatment, you can also drain the cervical cavity to drain the blood in the uterine cavity, and then give hemostatic and anti-infective drug treatment. Thirdly, if necessary, the bleeding area can be stopped by electrocoagulation under hysteroscopy. If there is abnormal tissue in the uterine cavity that affects the contraction of the uterus, it needs to be removed and sent for pathology. The accumulation of blood in the uterine cavity in women is caused by the rupture of small blood vessels due to inflammation of the endometrium.