Obstetric broad ligament hematoma is one of the serious complications of obstetrics, which can occur during or after delivery. It is caused by poor suturing of the tissue at the incision end. The edges of the incision must be sutured to more than 1 cm from the incision, and it is best to tie the knot separately, as incomplete hemostasis is the cause of hematoma. The suturing of the 2 corners of the uterine incision is critical. Immediately after delivery of the fetus, tissue forceps should be taken to clamp the two corners of the uterine incision and the upper and lower edges to avoid vascular retraction. The stitches are also used to prevent the blood vessels from retracting and forming a hematoma. There is also a risk of hematoma of the broad ligament if the uterine incision is not prolonged. What are the examination methods? 1.Gynecological ultrasound examination Ultrasound examination is painless and non-invasive, and is one of the most relaxing examinations. It is usually necessary to examine under the condition of holding urine. It is best to start drinking water after entering the hospital, and if there are many people examining, you must tell the doctor if you are already uncomfortable and try to examine in advance. 2, uterus and adnexal examination The uterus and adnexal examination is an examination of the uterus and the fallopian tubes and ovaries to the left and right of the uterus, and is used to determine whether there are lesions in the uterus. The hematoma of the birth canal is related to the injury of the birth canal, and there are also hematomas related to the blood coagulation dysfunction, which may be formed even if there is mild tissue damage during labor or surgery. For example, hematologic diseases, especially with thrombocytopenia, insufficient synthesis of coagulation factors in liver diseases, and severe hyperemesis complicated by DIC. Therefore, pregnant women with the above-mentioned comorbidities should be carefully checked and observed to stop bleeding, regardless of the mode of delivery.