Before labor begins, expectant mothers experience contractions that gradually increase in intensity—a key sign of impending delivery. Some mothers encounter weak contractions, which can impact both mother and baby. Today, let's explore how weak contractions affect both mother and child.
Effects on the Mother
Weak contractions prolong labor for the mother. First, the latent phase extends beyond 16 hours. Next, the active phase lengthens to over 8 hours. After the active phase stalls, cervical dilation halts for more than 2 hours.Finally, the second stage of labor is prolonged: after full cervical dilation, delivery takes over 2 hours for primiparas and over 1 hour for multiparas. Overall, the extended labor process leads to inadequate rest, reduced food intake, and significant mental and physical exhaustion for the mother. This results in fatigue, weakness, and intestinal distension. In severe cases, it can cause dehydration, acidosis, and hypokalemia.
Additionally, bladder compression between the presenting part (especially the fetal head) and the symphysis pubis may cause tissue ischemia, edema, necrosis, and result in vesicovaginal or urethrovaginal fistulas. Premature rupture of membranes, along with repeated rectal or vaginal examinations, increases infection risk.Weak uterine contractions also affect the mother postpartum. They impair placental separation, delivery, and closure of uterine sinuses, increasing the risk of postpartum hemorrhage.
Effects on the Baby
Prolonged labor increases the likelihood of surgical intervention, which is detrimental to the fetus. Inadequate contractions prevent complete relaxation of the uterine wall, raising the risk of fetal distress. Premature rupture of membranes may cause umbilical cord compression or prolapse, potentially leading to fetal distress or even intrauterine fetal death.
Contractions may begin approximately one month before delivery. Mothers should monitor their frequency. If contractions are frequent, seek prompt medical attention to receive medications that inhibit contractions. Regular prenatal checkups are essential for effective prevention of premature contractions.