Background: Dengue infection is caused by dengue viruses that belong to family flaviviridae which includes four serotypes. The present study was conducted to assess cases of dengue infection. Materials & Methods:All consecutive patients of dengue fever admitted in the dedicated seasonal ward or various medical wards including medical ICU of the Department of Medicine of S.P. Medical College and Associated Group of P.B.M. Hospitals Bikaner, were taken in the study.Diagnosis of dengue fever was done as per WHO guidelines and laboratory confirmation of dengue fever was done by RDT and ELISA.All patients were evaluated thoroughly by clinical history and physical examination as per performa. All patients were also subjected to various laboratory tests. Results: Majority (73.0%) patients represented with dengue fever whereas 25.8% patients were suffering from dengue hemorrhagic fever. Only 1.20% patients presented with dengue shock syndrome.The mean platelet count was 50.67 with range of 6-196. Mean TLC was 4306.45 within a range of 900-13500. The mean hematocrit was 42.50 within a range of 30-58. Mean MPV was 8.19, mean PDW 16.38 and mean PCT 0.0479. Conclusion: Majority of patients represented with dengue fever followed by dengue hemorrhagic fever.