Objective: To find out the effect of dydrogesterone drug on menstral cycle of adolescent girl. Study design: A total of 50 adolescent girl (16-19 years) who were suffering from irregular menstruation were recruited for this study from April 2008 to February 2009, at JNM Hospital, Kalyani, West Bengal, India. Results: Menstrul cycle was found to be regular within 6 months of treatment along with...