Background and Objectives: The transition from childhood to adulthood occurs during adolescence period which is characterized by major biological changes like physical growth, sexual maturation and psycho-social development. During this phase of growth the girls first experience menstruation and related problems which is marked by feelings of anxiety and eagerness to know about this natural phenomenon. Present study was undertaken to determine health status of adolescent girls by studying morbidity patterns amongst them and to know treatment seeking behaviour of adolescent girls. Methods: This one year community based cross-sectional study was done at village Peeranwadi, PHC Kinaye, Belgaum. Four Hundred (400) adolescent girls were selected randomly from each block. Study was approved by Institutional Ethics Committee, Jawaharlal Nehru Medical College, Belgaum. Written informed consent was obtained from all participants. Information on socio-demographic variables, history regarding illness one month prior and treatment seeking behavior were recorded. Haemoglobin estimation was done by cyanmethaemoglobin method. Results: Majority (82.25%) had age between 10 to 14 years and mean age of study population was 12.9±2.06 years and 98.5% were literates. Of 400 adolescent girls, 51% had attained menarche. The mean height, weight and BMI was less among 10 to 14 years compared to 15 to 19 years (p=0.000). In this study 15 (3.75%) were married and of them 60% were pregnant and all had registered for antenatal care. Most common morbidity reported in last one month was GI infections (14.75%), fever (12.75%) and dysmenorrhoea (12%). Prevalence of anaemia was 75% and 49.75% had mild, 20.75% had moderate and 4.5% had severe anaemia. 61.25% had taken treatment of which 74.69% visited health facility for treatment, 19.21% took home remedy and 6.12% did not take any treatment. The place of treatment was decided by themselves in 20.81% whereas 78.78% family members were decision makers. Conclusion and interpretation: In this study almost 75% of the girls were anaemic. Their status of anaemia is likely to worsen during pregnancy leading to complications including post partum haemorrhage. Although their literacy status and health seeking behaviour was on the better side, it needs to be still improved.