摘要:"Background: Menstrual disorders are common among adolescent girls and they are lacking scientific knowledge regarding menstruation and puberty making them more vulnerable. This study was conducted to determine patterns of menstrual cycles among young girls and menstrual problems. Material and Methods: Cross–sectional survey was conducted among adolescent school going girls in four schools: two in Chandigarh and two in Himachal Pradesh (Districts Mandi and Hamirpur) selected by stratified multi-stage random sampling design.. Only those respondents whose parents gave consent and they were also willing to take part in the study were included. Information was collected on socio-demographic characteristics and menstruation related information. Results: About 80% girls who attained menarche had prior information regarding menstruation and among them 45(51.1%) reported mother as main source of information.. There were 77(69.3%) girls having problems/ complaints related with menstruation. Excessive flow during menstruation was reported by 17(15.3%) girls. There were 22 (19.8%) girls having reportedly irregular periods. Only 19(24.7%) girls reporting menstrual problems approached somewhere for problems related with menstruation. Conclusions: Present study concludes that menstrual problems are highly prevalent among girls in the studied population and they have lot of misconceptions regarding menstruation. "