Oligomenorrhea in Babol high school girls in 2001-02

Background and Objective: Oligomenorrhea in the first years of menarche can be as normal condition, but when is consistent, or when is occurring after several normal menstrual cycles, other underlying disease must be considered. This study was done to determine the relative frequency of oligomenorrhea and other relative factor in Babol city’s high school girls. Methods: This descriptive and cross-sectional study was done on 800 high school girls, 14-19 years old group of Babol city in years of 2001-2002. A questionnaire about (Weight, height, menarche age, existence of excess hair, acne ...) has been given to students and the collected data was analyzed by Chi-square test and P