What is the cause of weak uterine contractions? What should I do if I have weak uterine contractions?

When a pregnant woman gives birth, her uterus will gradually contract. Prolonged uterine contractions can cause the fetus to be born unsmoothly, so early uterine contraction prevention is necessary. So what is the cause of weak uterine contractions? What should I do if my uterus is weak?

Causes of weak uterine contractions

1. Primary uterine atony: The contraction force of the uterine muscles is very weak from the beginning or the uterine muscles are edematous and hinder the contraction. Multiple births, excessive amniotic fluid, etc. can also cause uterine atony.

Secondary uterine atony: If the pelvis is narrow and the fetal head is not in the right position, the delivery cannot proceed normally, and the mother will feel tired and the uterine contractions will become uncoordinated. In addition, the mother's nervousness and constant pain will prolong the labor process and lead to uterine atony.

3. Other common factors: 1. Mental factors. Primiparas have fear of childbirth and are overly nervous, which disrupts the normal function of the central nervous system and causes uterine atony. 2. Uterine factors. Twins, polyhydramnios, and macrosomia cause the uterus to have high tension and poor elasticity, resulting in loss of normal uterine contractions or loss of normal polarity and symmetry due to uterine malformations, causing uncoordinated uterine atony.

What to do if uterine contractions are weak

1. Pregnant women should check the birth canal and fetal position if they have weak uterine contractions. If the birth canal is obstructed or the fetus is in an abnormal position and it is estimated that vaginal delivery is not possible, cesarean section should be performed in time; if vaginal delivery is estimated, efforts should be made to strengthen uterine contractions, such as eliminating the nervousness of the parturient; if the parturient is extremely tired, sedatives can be given to allow the parturient to have sufficient rest and pay attention to nutritional supplementation; if the parturient cannot eat, infusion can be given; if the uterine contractions still do not improve, artificial rupture of membranes can be performed. After rupture of membranes, the fetal head is close to the lower uterine segment and cervix, thus reflexively causing uterine contractions. Uterine contractions can also be strengthened by intravenous drip of oxytocin.

2. Labor enters the second stage, and the cervix is ​​fully dilated. At this time, uterine contractions become weak. If the fetus's presenting part is low and vaginal delivery is possible, oxytocin can be given intravenously, and then vaginal delivery can be performed to end the delivery. If the fetus is large, the presenting part is high, and there is cephalopelvic disproportion, it is estimated that vaginal delivery is not possible and cesarean section is still required.

3. After the fetus is delivered, weak uterine contractions can easily cause postpartum hemorrhage, so 10 units of oxytocin should be injected intramuscularly immediately, and abdominal massage of the uterine fundus should be performed at the same time to promote uterine contraction.

How to prevent uterine atony

1. Correctly understand childbirth: Pregnant women should learn more about childbirth during pregnancy, correctly understand the process of childbirth, avoid fear and increase tension.

2. Do a good job of check-up during pregnancy: After becoming pregnant, you should go to a regular hospital for regular check-ups to get a preliminary understanding of the method of delivery. If the fetus is in an abnormal position, it should be corrected as soon as possible.

3. Cooperate with medical staff: During the delivery process, pregnant women should cooperate with the work of medical staff, and medical staff should pay attention to closely observe the delivery process of pregnant women and handle it correctly.

4. Arrange daily life: Women should eat, drink water, urinate, defecate and sleep on time after the clinic to consume physical strength and replenish energy in time.