Weak uterine contraction

Productivity includes uterine contraction, abdominal wall and diaphragm contraction, and levator anus contraction, of which uterine contraction is the main force. During the delivery process, the rhythm, symmetry, and polarity of the uterine contraction are abnormal or the intensity and frequency are changed, which is called abnormal uterine contractility. Clinically, obstructive dystocia is often caused by abnormal birth canal or fetal factors, which increases the resistance of the fetus through the birth canal, resulting in secondary abnormal fertility. Abnormal uterine contractility is clinically divided into two categories: weak uterine contraction and excessive uterine contraction, and each type is coordinated uterine contraction and uncoordinated uterine contraction. Uterine contraction weakness refers to the polarity, symmetry and rhythm of the contractions are normal, but the contractions are weak and weak, the duration is short, the interval is long or irregular. The inability of the fetal to expose the lower part of the uterus and the cervix is ​​not enough to make the cervix expand at a normal rate, cause prolonged or stagnant labor, and cause a series of complications for the mother and child. The disease has a high incidence in those with improper fetal position, pelvic pelvis and multiple uterine local factors such as multiple pregnancies, twins, and polyhydramnios. At the same time, it is also found in mentally stressed persons who can handle pregnancy and labor in time and correctly Reduce the incidence of uterine contraction weakness.