author(s)
Shehzad Zareen, Hameed Ur Rehman, Muhammad Shoaib, Abida Khatoon, Ayesha, Sadia Raheem, Saima, Kausar Saeed and Sajid Iqbal

abstract
About 600 adult Menstruating females of district Kohat were included in the study. Number of Menstruating days of each female was recorded. Observation was recorded from the 1st day of menstruating till the end of menstruation period. About 28.83% female population had 3-4 days’ menstruation period which is considered to be short period, a total of 56.16% female population had 5-6 days’ menstruation period, 12.33% female population had 7-8 days’ menstruation period while only 2.66% female population of this study had the longest (9-10days) menstruation period. About 5.88% aged female population had the longest menstruation periods i.e. 9-20 days. A comparatively normal menstruation (5-6 days) period of 61.24% respondents was observed in age group 21-30 while in same age group about 26.03% respondents had least days of menstruation period i.e. 3-4 days.