Thelansis

  Preterm labor, defined as childbirth occurring between 20 0/7 weeks and 36 6/7 weeks of gestation, can be further categorized into early preterm (birth before 33 weeks) and late preterm (birth between 34 and 36 weeks). Various factors contribute to preterm labor, including stress, infection, placental abruption, placenta previa, substance use, history of preterm birth or abortion, inadequate prenatal care, smoking, maternal age below 18 or above 40, poor nutrition, low body mass index, fetal anomaly, fetal growth restriction, oligohydramnios, polyhydramnios, vaginal bleeding, premature preterm rupture of membranes (PPROM), and environmental factors. Labor involves three main components: cervical changes, persistent uterine contractions, and activation of the decidua and membranes. The distinction between term labor and preterm labor lies in the physiological nature of the former and the pathological nature of the latter. Preterm labor can occur acutely or develop gradually over...

 Preterm labor, defined as childbirth occurring between 20 0/7 weeks and 36 6/7 weeks of gestation, can be further categorized into early preterm (birth before 33 weeks) and late preterm (birth between 34 and 36 weeks). Various factors contribute to preterm labor, including stress, infection, placental abruption, placenta previa, substance use, history of preterm birth or abortion, inadequate prenatal care, smoking, maternal age below 18 or above 40, poor nutrition, low body mass index, fetal anomaly, fetal growth restriction, oligohydramnios, polyhydramnios, vaginal bleeding, premature preterm rupture of membranes (PPROM), and environmental factors. Labor involves three main components: cervical changes, persistent uterine contractions, and activation of the decidua and membranes. The distinction between term labor and preterm labor lies in the physiological nature of the former and the pathological nature of the latter. Preterm labor can occur acutely or develop gradually over se...