Background: Due to dysmenorrhea in adolescent girls age 12 to 18 there is sickness absenteeism, loss of physical activity, academic dissatisfaction, and disruption of personal relationships, confidence and concentration. Physical exercise can be non-medical intervention to relieve primary dysmenorrhea. Aim of this study was to compare the effect of yoga and stretching exercise on pain and menstrual distress in adolescent girl with primary dysmenorrhea. Method: In this comparative study, (n=60) subjects were divided into 2 groups each Group A Yoga (30) and Group B Stretching (30). The protocol was of 4 weeks each. Pain was assessed by NPRS and menstrual distress was assessed by Moos Menstrual Distress Questionnaire before and after intervention. Result: Intergroup analysis was done using unpaired t-test which showed significant improvement in Group A subjects (Yoga ) for improving pain (p<0.001) and decreasing menstrual distress, components i.e pain (p < 0.0043), concentration (p < 0.0486), behavioral changes (p < 0.0091), autonomic reactions (p < 0.0001), water retention (p < 0.017), negative effect (p < 0.0085), arousal (p < 0.001), control (p < 0.0018) post treatment.
 Conclusion: Looking at the statistical analysis and results our study we can concluded that: after comparison yoga is more effective than stretching in reducing pain and menstrual distress in adolescent girls with primary dysmenorrhea at the end of 4 weeks.