Separation of the uterine cavity after delivery is usually indicative of fluid and blood accumulation in the uterine cavity. The main causes include tissue residue, low activity, low urination, endometritis, etc. The cause should be clarified and then treated. Common causes and treatments 1, tissue residue: after delivery, if the uterine cavity residual placenta, fetal membrane tissue, can affect the normal contraction function of the uterus, so that the uterine blood can not be discharged in a timely manner, which leads to separation of the uterine cavity occurs. If the residue in the uterus is small, generally there is no need to clear the uterus, you can choose motherwort to regulate under the guidance of the doctor. If the residue in the uterus is more and larger, the patient should go to the hospital in time to have the uterus cleared; 2, too little activity: if you do not get out of bed for a long time after giving birth, it may affect the discharge of blood in the uterine cavity, and the symptoms of separation of the uterine cavity, the patient should increase the activity appropriately to promote the discharge of blood in the uterine cavity to relieve the symptoms; 3, less frequent urination: when the maternal urination is low, it can lead to a full bladder, which affects the uterine contraction, and cannot discharge the blood in the uterine cavity in time. It can’t discharge the blood in the uterine cavity in time, causing separation of the uterine cavity after delivery. Postpartum should urinate on time, if necessary, follow the doctor’s instructions to use diuretics, to avoid overfilling of the bladder; 4, endometritis: maternal failure to pay attention to personal hygiene, easy to lead to the invasion of pathogenic microorganisms, resulting in endometritis, inflammatory secretions accumulated in the uterine cavity can not be discharged in a timely manner, the manifestation of the separation of the uterine cavity, can be taken orally under the guidance of the doctor, cephalosporins, Metronidazole, Ornidazole and so on. Precautions maternity should pay attention to rest, moderate exercise, avoid staying up late, tired, eat fresh vegetables, fruits, vitamins, drink more water, balanced nutrition, keep in a good mood, promote postpartum recovery.