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 due to the absence of prolongation of the uterine incision. The suturing of the two corners of the uterine incision is critical. Immediately after delivery of the fetus, tissue forceps should be used 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. Ultrasound shows a hematoma, which is asymptomatic when the mass is small, and has no characteristic clinical manifestations when it is large. If the hematoma is not large and does not continue to increase in size, anti-inflammatory, hemostatic and physical therapy can be strengthened in anticipation of the absorption of the hematoma; if the hematoma is roughly significantly anemic or continues to increase in size, a dissection should be performed, the broad ligament should be incised, the hematoma should be removed, sutures should be placed to stop the bleeding or drainage tubes should be placed to drain the hematoma, and postoperative anti-inflammatory and hemostatic therapy should be performed. Regular checkups are still necessary, such as abdominal ultrasound monitoring.