Premature rupture of membranes is usually preceded by no warning.
Typical symptoms of premature rupture of membranes are a sudden sensation of more fluid coming out of the vagina, and an increase in the amount of vaginal fluid when abdominal pressure is increased. In full-term rupture of membranes, the anterior amniotic sac is not palpable on examination, and the amount of vaginal fluid increases when the fetus is pushed upward, and fetal fat and feces can be seen.
Reproductive tract infection is the main cause of premature rupture of membranes. Elevated pressure in the amniotic cavity High pressure in the uterine cavity, such as twin pregnancies and excess amniotic fluid, can easily cause premature rupture of membranes.
Uneven pressure on fetal membranesAbnormal fetal position, cephalopelvic disproportion, etc. can make the preluscious part of the fetus can not be articulated with the pelvic inlet, and the pressure on the anterior amniotic sac is uneven; cervical insufficiency, the anterior amniotic sac wedges in, and the fetal membranes are subjected to uneven pressure, which leads to premature rupture of fetal membranes. Trauma improper amniocentesis, sexual stimulation, impact on the abdomen may cause premature rupture of membranes.
Nutritional factors of pregnant women, copper, zinc and vitamin deficiency, affecting the synthesis of collagen fibers and elastic fibers of the fetal membranes, the tensile ability of the fetal membranes decreases, causing premature rupture of fetal membranes.
It is recommended that the patient seek timely medical attention.