Dysmenorhea is an expected and physiological experience in females associated with some inconveniences and distressing experience. The study utilized descriptive and cross sectional design to gather information with the use of adaptive structured questionnaires to collect information from female adolescents in selected secondary schools. Standardized tool of dysmenorhea Knowledge and menstrual attitude scale (MAS) by Brooks- Gunn and Rubble (1980) were adapted to gather information to measure the knowledge from mother, culture and social media. Data were collected and analysed with Pearson’s Product Moment Correlation. The duration of bleeding among the participants under study is 53.3 0/0 which is the highest level, regularity of the cycle is 76 0/0 while irregular is 24.3 0/0. Pain intensity 20.9 0/0 mild and severe is 53.3 0/0. Knowledge level of dysmenorhea include 47.5 0/0 below average and 17.1 0/0 above average. Measures taken with pharmacological choice like paracetamol 61.2 0/0 and morphine 5.8 0/0 Non - pharmacological like herbal remedies 38.3 0/0.On pain intensity , result shows that social withdrawal rates 1st with 2.67 mean score, restriction of physical activities 2nd with 2.33 0/0. Lastly Pearson products moment correlation shows the outcome of the hypothesis as there is no significant relationship between Knowledge and self- management was rejected because there is a significant relationship between Knowledge and self- management with r---217, p-.209, this means that knowledge of dysmenorhea is low and negatively related to self- management among the female adolescents students which means that female students had little or no knowledge of managing dysmenorhea. It was recommended among others that intensive counselling education should be given to teens on the causes and management of dysmenorrhea. Keywords: Knowledge, Self-Management, Dysmenorrhea, Female Adolescents,