<unk>  is defined as<unk>  that occurs between after 20 and before 37 weeks of gestation. When<unk>  occurs prior to 33 weeks of gestation, it is called early<unk>  and late<unk>  occurs between 34 and 36 weeks of gestation.Stress, infection, placental abruption, placenta previa, substance use, prior history of<unk>  birth or<unk> tion, inadequate prenatal care, smoking, maternal age <18 or >40, poor nutrition, low body mass index, fetal anomaly, fetal growth restriction, oligohydramnios, polyhydramnios, vaginal bleeding, premature<unk>  rupture of membranes (PPROM) are few factors that contribute to<unk> .It is one of the main cause of neonatal death. Neonates born<unk>  are at an increased risk of neurodevelopmental disorders, such as cerebral palsy, intellectual disabilities and vision/hearing impairments.Most of the<unk>  births occur after the spontaneous onset of<unk> , whereas the rest of the cases are related to maternal or fetal complications, such as preeclampsia or intrauterine growth restriction.
Preterm labor
Preterm labour
Placenta previa
Obstetrical hemorrhage
Antepartum haemorrhage
Forceps in childbirth
Premature rupture of membranes
Preeclampsia