Abstract: Objective： Discuss the effect of B-Lynch suture technique to postpartum hemorrhage on cesarean section． Methods：80 patients had been subjected to cesarean section with postpartum hemorrhage. They were selected and divided into observed group（４０ ｃａｓｅｓ） ａｎｄ ｃｏｎｔｒｏｌｌｅｄ ｇｒｏｕｐ（４０ ｃａｓｅｓ）． Ｔｈｅ ｏｂｓｅｒｖｅｄ ｇｒｏｕｐ ｗａｓ ｒｅｃｅｉｖｅｄ Ｂ－Ｌｙｎｃｈ ｓｕｔｕｒｅ ｔｅｃｈｎｉｑｕｅ， ｔｈｅ ｌａｔｔｅｒ ｗａｓ ｓｕｂｊｅｃｔｅｄ ｔｏ ｔｈｅ ｔｒａｄｉｔｉｏｎａｌ ｍｅｔｈｏｄｓ ｏｆ ｈｅｍｏｓｔａｓｉｓ． Ｂｏｔｈ ｏｆ ｅｆｆｉｃｉｅｎｃｙ， ｉｎｔｒａｏｐｅｒａｔｉｖｅ ｈｅｍｏｒｒｈａｇｅ， ｏｐｅｒａｔｉｏｎ ｔｉｍｅ， ｃｏｓｔ ｏｆ ｈｏｓｐｉｔａｌｉｚａｔｉｏｎ ｗｅｒｅ ｃｏｍｐａｒｅｄ． Ｒｅｓｕｌｔｓ：Ｃｏｍｐａｒｅｄ ｗｉｔｈ ｔｈｅ ｃｏｎｔｒｏｌ ｇｒｏｕｐ， ｔｈｅ ｏｂｓｅｒｖａｔｉｏｎ ｇｒｏｕｐ ｏｆ ｌｅｓｓ ｉｎｔｒａｏｐｅｒａｔｉｖｅ ａｎｄ ｐｏｓｔｏｐｅｒａｔｉｖｅ ｂｌｏｏｄ ｌｏｓｓ，ｓｈｏｒｔｅｒ ｈｏｓｐｉｔａｌｉｚａｔｉｏｎ ｔｉｍｅ， ｈｏｓｐｉｔａｌｉｚａｔｉｏｎ ｅｘｐｅｎｓｅｓ ｌｏｗ， ｄｉｆｆｅｒｅｎｃｅｓ ｗｅｒｅ ｓｔａｔｉｓｔｉｃａｌｌｙ ｓｉｇｎｉｆｉｃａｎｔ（Ｐ＜０．０１）． Ａｎｄ ｇｏｏｄ ｐｏｓｔｏｐｅｒａｔｉｖｅ ｒｅｃｏｖｅｒｙ， ｎｏ ｃｏｍｐｌｉcations occurred. Conclusions：B-Lynch suture is an effective method of treatment of postpartum hemorrhage in cesarean section, is worth promoting.

Key words: Suture techniques, Cesarean section, Uterine inertia, Postpartum hemorrhage, Uterine hemorrhage