IRCT2012072410327N2 IRCT 2012-10-24 Vice chancellor for research,sums Warm compress on the injury severity of perineal pain in labor Influence of warm compress on prevention of perineal trauma and second stage pain intensity in primiparous with delayed valsalva maneuver referred to selected hospital of Shiraz university of medical sciences 90-91 2012-06-09 anticipated 150 Complete https://irct.ir/trial/10824 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Prevention. N/A Childbirth. Intervention 1: control:Routine care. Intervention 2: intervention group:Full cervical dilatation was opened in the thorns Askyal head fetal intervention was to use hot compresses on the perineum is used for 15-20 minutes and the Valsalva maneuver may delay.