الفهرس 
Acknowledgement
MethodologyOnly 14 pages are availabe for public view
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Abstract
This essay concentrates on the epidemiology of preterm labour through explanation of risk factors, the worldwide incidence of preterm labour and also helps to reach to possible classification for preterm labour.
The identification of predictors for preterm labour will play very important role in early detection of preterm labour so this study concentrated on the most common indicators for preterm labour such as previous history of preterm labour, studies of cervical sonography, fetal fibronectin, and uterine contraction monitoring during pregnancy.
The study of both categories (epidemiology, early Delection of preterm labour) will help to reach early methods of prevention.
The prevention of preterm labour help to avoid maternal complications and fetal morbidity and mortality which make economic implications and also bad healthy implications on mother and fetus. so in prevention of preterm labour we concentrate on using of antibiotics for infection and tocolytic and also good notional status, antenatal care ,the role of progesterone, the role of cervical cerclage all these factors prevent preterm labour.