6 reasons why incomplete abortion occurs during artificial abortion

Incomplete abortion refers to the situation where the embryonic sac or placental tissue is not completely sucked out during abortion, and there are residual embryonic tissues in the uterine cavity. These tissues are either free in the uterine cavity or still attached to the uterine wall, resulting in excessive bleeding and prolonged bleeding time in the operating room or after surgery.

Possible reasons for incomplete abortion are: ① The surgeon is not skilled, has an inaccurate grasp of the size and position of the uterus, and has no experience of whether the uterine cavity is cleaned by suction or scraping, which may cause some embryos or chorionic tissues not to be sucked or scraped clean. ② Uterine malformations such as uterine septum, double uterus, saddle-shaped uterus, and bicornuate uterus are difficult to operate, which may sometimes cause incomplete abortion. ③ Uterine fibroids combined with pregnancy, especially submucosal tumors, cause irregular uterine cavity and difficult surgical operation. ④ The implantation position of the fertilized egg is special, such as implantation at the bottom of the uterine cavity, which is not easy to be completely touched by the suction tube and scraper. ⑤ The negative pressure is too high, which stimulates the irregular contraction of the uterine muscle wall, forming a narrow ring in a certain part of the uterine cavity, leaving tissue residue. ⑥ The negative pressure is too low, the rubber tube is too soft, and the suction tube is too thin, which makes the suction insufficient, which not only easily causes prolonged operation time and increased bleeding during the operation, but also easily causes incomplete abortion.