Frequency of disturbed LH to FSH ratio in teenage girls with primary amenorrhea

Aim: to determine the frequency of disturbed lh to fsh ratio in teenage girls with primary amenorrhea. study design: it was a descriptive cross sectional study. place of study: department of obstetrics & gynaecology,jinnah hospital,lahore. duration: from 20th april 2014 to 20th october 2014. method: in this study,a total of 190 girls between 13-19 years of age presenting with primary amenorrhea were included in the study through opd of department of obstetrics and gynecology,jinnah hospital,lahore while married girls,already taking hormonal treatment,and all the patients having history of radiotherapy or chemotherapy in early childhood due to malignant diseases were excluded from the study. all girls were advised serum lh and fsh from pathology department of the hospital. biomeriux enzyme immunoassay (eia) kits were used for hormonal tests. lh/fsh ratio was then calculated and noted. disturbed lh/fsh ratio was labelled. results: in our study,out of 190 cases,96(50.53%) were between 13-16 years of age and 94(49.47%) were between 17-19 years of age,mean±sd was calculated as 16.23±2.03 years of age. mean values of hormones of the cases were calculated as 8.29±1.18 for lh and 8.54±1.31 for fsh and 1.35±0.65 for lh/fsh ratio. frequency of disturbed lh to fsh ratio in teenage girls with primary amenorrhea was calculated as 15(7.89%) while 175(92.11%) had no findings of disturbed lh to fsh ratio. conclusion: we concluded that the frequency of disturbed lh to fsh ratio is not significantly higher among teenage girls with primary amenorrhea.