How is double horn uterus formed?

summary

During embryonic development, the caudal ends of accessory mesonephric tubes on both sides have mostly confluenced, and the terminal septum has been absorbed, so a cervix and a vagina are formed, but the part corresponding to the fundus of uterus does not confluence completely, resulting in a prominent horn on both sides of the uterus, which is called double horn uterus. Patients with bicornate uterus often have excessive menstruation and prolonged menstruation, abortion, premature birth or abnormal fetal position after pregnancy. Let's share my experience with you.

How is double horn uterus formed?

Some patients with uterine malformations may not have any symptoms, menstruation, sex life, pregnancy, childbirth and other abnormal performance, so that they are not found for life, or occasionally found in physical examination. But there are also some patients whose reproductive system function is affected to varying degrees. Only when they reach sexual maturity, after marriage, or during pregnancy or childbirth, can they be found because of symptoms.

There is a cervix and a vagina because the caudal ends of the accessory mesonephric canals on both sides have mostly converged and the terminal septum has been absorbed; However, it is equivalent to incomplete confluence at the bottom of the uterus, resulting in a prominent horn on both sides of the uterus, which is called double horn uterus. This kind of deformity degree is lighter, the performance of the uterine floor inward depression, according to different degrees, the formation of the so-called saddle shaped uterus, heart-shaped uterus, arched uterus, such as pregnancy can cause abortion or abnormal fetal position.

Intrauterine and postpartum pathology: abnormal uterus often coexists with myometrial dysplasia. Delivery can be due to abnormal productivity, cervical dilatation difficulties, resulting in dystocia or even uterine rupture. Vaginal delivery may have placental retention, postpartum hemorrhage or postpartum infection. In patients with bicornate uterus, postpartum hemorrhage may occur due to the expulsion of decidua from the uterine cavity on the non pregnant side.

matters needing attention

Doctor Chen Fenglin of Beijing Antai hospital invented "uterine fusion": the most common and effective indication of uterine deformity repair surgery is symmetrical bicornate uterus. All patients with recurrent abortion should be operated as soon as possible. Make a transverse incision from one side of the uterine horn to the opposite side of the uterine horn, cut the muscle wall in half, and sew the left and right incisions together.