When labor start before the 37th completed week,
counting from the first day of the last menstrual
period. The prevalence widely varies and ranges
between 5-10%.The exact reason of premature onset is
The following however, related with increased
incidence of preterm labor:
---- Spontaneous abortion, previous history if
induced or preterm delivery.
---- Recurrent urinary tract infection.
---- Smoking habit.
---- Low socio-economic and nutritional status.
---- Pregnancy complication such as pre-eclampsia,
haemorrhage, premature rupture of the membranes.
---- Uterine anomalies such as malformation of
---- Medical and surgical illness such as fever
,acute appendicitis, diabetes, abdominal operation,
hypertension, heart lesion, severe anaemia.
---- Genital tract infection.
In such case i.e. preterm labor minimize the risk of
perinatal mortality and morbidity, to preserve
maternal health. In such situation prevent premature
onset of labor, if possible. Arrest premature onset
of labor ,if possible. Give effective neonatal care.
As cause of preterm is known. After knowing all
complication of pregnancy decision has to be taken
whether to allow the pregnancy to continue or not.
The risk of delivery of a low birth weight baby has
to be weighed against the risk involved to the
unborn and mother in continued pregnancy.
- After identifying risk factor by taking
history, the defects are rectified suggest
adequate rest, nutritional supplements,
avoidance of smoking.
- In some case early engagement of the head
should be viewed. In such condition the patients
are to be put to bed rest .
- Be sure about gestational age before
- Selective continuation of complicated
pregnancy such as twins, pre-eclampsia.
To arrest preterm labor, delay delivery for
at least 24hours for glucocorticoid therapy to
the mother to enhance fetal lung maturation, if
premature labor starts before34th week. In utero
transfer of the patient to a unit more able to
manage a preterm neonate.
Contraindications of preterm labor are :
A. Maternal: Diabetes, severe hypertension,
cardiac disease, haemorrhage in pregnancy.
B. Fetal : Fetal distress, fetal death,
congenital malformation, pregnancy before 34
C. Others: Rupture of membranes, cervical
dilatation more than 4cm.