Background: Pregnancy is a physiological condition in which various changes occur in pregnant women just to accommodate growing fetus. Pregnancy is a stress test for woman and may unmask certain underlying chronic diseases like, DM, hypertension which were silent or asymptomatic prior to pregnancy. This study was done to know the incidence, type and demographic profile of medical disorders in pregnancy among in patient at a tertiary care hospital.Methods: It was a retrospective study conducted on 578 patients of medical disorders in pregnancy admitted in a tertiary care hospital from January 2017 to December 2017. Data collected from record room and analysis done.Results: Total antenatal admissions were 4721. Incidence of medical disorders was 12.24%. Majority of women were in age group 20-30 years (65.5%). Low-parity (P0, P1). Hypertensive disorders in pregnancy was commonest reported disorder (42.3%), followed by hematological disorder (38.7%), liver disorder 5%, endocrine disorder 4.8%, epilepsy 3.8% and HIV 2.6% in present study.Conclusions: Hypertensive disorders were commonest medical disorder followed by hematological, liver, endocrine and epilepsy. All medical disorders in pregnancy to be managed by team approach.