Causes of uterine relaxation

If the uterus has become loose, it is important to find out the cause. This is very important because uterine relaxation is very dangerous to women's bodies. However, many people do not realize this. When the uterus becomes loose, many viruses and bacteria will take advantage of the opportunity to enter, and it will also have a very big impact on your future childbearing, so you need to seek treatment.

Risk factors: Conditions that lead to uterine overdistension (multiple pregnancy, polyhydramnios), uterine fragility (post-term pregnancy or chorioamnionitis), and extrinsic restriction of uterine contractility (use of uterine relaxants or general anesthesia). It is generally believed that most of them are related to cervical injuries caused by curettage, delivery or surgical delivery, especially forceps curettage during artificial abortion in late pregnancy, which can easily damage the internal cervical os. A small number of patients have congenital developmental abnormalities.

It is usually diagnosed by palpation of the abdomen and is marked by a soft uterus. About 75% of postpartum hemorrhage is caused by uterine atony, which is the main cause of postpartum hemorrhage and often leads to unstable vital signs.

The diagnosis of endometrial relaxation can be based on the following points: 1. History of cervical surgery such as cervical dilation and curettage, history of emergency delivery or forceps delivery. ② It is easier to conceive, but also more prone to miscarriage or premature birth, and most have a history of more than two spontaneous abortions in mid-pregnancy. The characteristics of miscarriage are that there is no obvious paroxysmal abdominal pain before miscarriage, sudden rupture of the fetal membrane, and rapid delivery of the fetus, which is mostly fresh and has no congenital developmental abnormalities. ② During the non-pregnancy period, if the cervix is ​​shorter than 1.5 cm or a No. 8 cervical dilator can easily pass through the internal os of the uterus without resistance or pain.

During pregnancy, the cervical canal is short and the internal and external openings of the uterus are relaxed, allowing fingers to pass through. ④ Uterine iodized oil angiography shows that the cervical canal is pathologically dilated with a diameter greater than 6 mm; B-ultrasound examination shows that the internal os of the uterus is wide. If it is larger than 19 mm and there is a history of miscarriage, the diagnosis will be confirmed.

The treatment methods for endometrial relaxation can be summarized as surgical and non-surgical treatments. Surgical treatments are divided into two types: pregnancy surgery and non-pregnancy surgery. ① Surgery during pregnancy: Surgery is mainly performed in the second trimester of pregnancy (16-22 weeks). Ultrasound examination is routinely performed before the operation to rule out stillbirth and other possibilities. Salbutamol sulfate is taken before and after the operation to reduce the sensitivity of the uterus. Surgical methods include cervical suture and cerclage, the latter of which is divided into buried and pocket suture.

Regular follow-up is performed after the operation. If suture slippage is found, a second suture can be performed. Hospitalize half a month before the due date or in advance and remove the sutures when delivery is imminent. ② Surgery during non-pregnancy period: Generally performed 3-5 days after the menstruation ends. The surgical methods include internal cervical os constriction and internal cervical os ring tightening. Currently, surgery during pregnancy is often used clinically. Non-surgical treatment mainly uses vaginal pessaries to prevent miscarriage or premature birth through mechanical blocking. Regardless of the treatment method used, it should be combined with auxiliary treatments such as rest, abstaining from sexual intercourse, and strengthening pregnancy care to improve or consolidate the therapeutic effect.