This study aims to see if platelet rich plasma (PRP) have beneficial effect on the repair of
pelvic floor muscle damage in primipara. Therefore, this double blinded randomized clinical
trial compares the pelvic floor muscle repair in primipara following labor between the
interventional group who received intramuscular PRP injection in levator ani muscle and the
control group, as assessed by ultrasonography, perineometry, and biomarker assessments.