Fig. 2

The Cho’s square suture technique. A. The straight needle was passed through bleeding sites to compress the endometrial cavity; firstly it was passed from the anterior to posterior walls (a), and 2~3 cm laterally, the needle was passed back through posterior to anterior walls (b), then, the needle was moved 2~3 cm upwards (c), and the same procedure was repeated in the opposite direction (d). The knot was tied as tightly as possible (e). B. Squared suture was completed. C. Multiple squared sutures by Cho’s suture can be used for uterine atony after twin cesarean delivery