Uterine fluid in early pregnancy may be caused by normal physiological factors and does not need treatment; it may also be caused by endometritis, endometrial cancer and other diseases, which can be treated with medication and surgery. 1. Physiological factors: when the patient has fluid in the uterus in early pregnancy, if there is a small amount of fluid in the uterine cavity and the amount of fluid is within 5mm, it is physiological fluid in the uterine cavity, which usually does not need special treatment and can be absorbed naturally. Patients are advised to ensure sufficient rest and avoid exertion. 2. Endometritis: If the amount of fluid in the uterine cavity exceeds 5mm in early pregnancy and the ultrasound examination is accompanied by abnormal echoes of the uterine lining, endometritis is considered to be the cause of endometritis, and the patient will have abdominal pain, irregular vaginal bleeding and other symptoms, and the patient can follow the doctor’s instructions for the injection of ceftriaxone sodium, injectable penicillin sodium and other antibiotic drugs to treat the condition. 3. Pre-eclampsia: If the patient in early pregnancy has the phenomenon of the amount of fluid in the uterine cavity exceeding 5mm, it may be caused by pre-eclampsia. The patient will have vaginal bleeding, abdominal pain and other symptoms. It can be treated with oral progesterone such as dextroprogesterone tablets as prescribed by the doctor, as well as oral antibiotics such as amoxicillin capsules and amoxicillin clavulanate potassium. For pregnant women whose embryos have stopped developing, they can be treated with surgical procedures such as hysterectomy and curettage. When patients have uterine fluid in early pregnancy, if it is a normal physiological phenomenon, no special treatment is needed. If it is caused by a disease, it is recommended that the patient consult a doctor for examination in time and follow the doctor’s instructions for treatment.