Will the posterior position of the uterus affect pregnancy?

　　what is Uterus posterior position

　　Posterior position of the uterus means that the longitudinal axis of the uterus remains unchanged and the entire uterus tilts backward, which can easily cause the cervix to become upturned, that is, the uterus tilts backward, making it difficult for the cervix to soak in the semen pool, which may affect pregnancy. Posterior uterus clinical It is more common in women. If the uterus is retroverted and forms an acute angle at the junction with the cervix, it is called "uterine retroversion and retroflexion", which is clinically rare. There are differences in the formation of posterior uterus between congenital and acquired. However, most patients with posterior uterus can get pregnant successfully with certain fertility guidance. Only a few more serious patients need surgical treatment for posterior uterus.

　　Does the posterior position of the uterus affect pregnancy?

　　The position of the uterus in the pelvic cavity can be anterior, medial or posterior, and can be tilted or flexed. Under normal circumstances, the position of the uterus is anteversion and anteflexion, that is, the body of the uterus tilts forward, and the side of the cervix falls backward and downward, making the body of the uterus appear anteflexion. The so-called "uterine retroversion" means that the longitudinal axis of the uterus remains unchanged and the entire uterus tilts backward, which can easily cause the cervix to become upturned, making it difficult for the cervix to soak in the semen pool and affect conception. However, not all posterior uteri will cause infertility. Mild cases of posterior uterus are generally asymptomatic, while severe cases can cause pelvic congestion, Menorrhagia , difficulty in discharging menstrual blood, excessive leucorrhea, lower abdominal pain, back pain, anal swelling and other symptoms. Some women even have sexual intercourse pain or discomfort.

　　What is the most severe degree of posterior uterine position?

　　Depending on the degree of uterine retroversion, uterine retroversion is divided into degrees I, II, and III. Mild uterine posterior position (I-II degrees) generally does not cause symptoms and does not require treatment. Severe uterine posterior position often causes symptoms, mainly manifested as backache. In mild cases, it is only the soreness and discomfort in the waist, while in severe cases, the entire waist, sacrococcygeal area, and both sides of the iliac area feel unbearable soreness and swelling. In some patients, the soreness and swelling extends to the lower back and both sides of the groin. Soreness in the lower abdomen and bloating in the anus often coexist, and symptoms are often aggravated by fatigue and menstrual period. If it is not corrected in time, it may cause secondary Dysmenorrhea、Irregular menstruation , increased leucorrhea, sexual discomfort, miscarriage, infertility, etc. For patients with a posterior uterus, three months after conception, if the retrograde uterus has not been corrected automatically, the displacement of the bladder neck and urethra and the upturned cervix may compress the posterior urethra and cause acute urinary retention.