Background: Pregnant women are at increased risk of complications in hepatitis E virus (HEV) infection, with the risk increasing as the pregnancy progresses, often leading to fulminant hepatic failure and adverse fetal outcome. Aims: The primary objective of the following study is to evaluate the maternal and fetal complications of this infection and secondary aim is to compare the clinical features of hepatitis E in pregnant women to those in nonâÂÂpregnant women. Subjects and Methods: This was a hospital based caseâÂÂcontrols study, carried out from July 2008 to June 2010. Over a period of 2 years, cases were serologically confirmed pregnant women with hepatitis E, selected by screening in antenatal clinic. Controls were serologically confirmed nonâÂÂpregnant women with hepatitis E, selected by screening in Medicine Outpatient Department. We studied 96 women with HEV infection, of which 52 were pregnant and 44 were nonâÂÂpregnant. Clinical and laboratory profile of patients in both groups were studied. Patients were treated as per protocol and the outcome was studied in both groups. Pregnant women were followedâÂÂup for fetal and maternal outcome. We used tâÂÂtest and zâÂÂtest to compare normally distributed data and nonâÂÂnormally distributed data, respectively. ChiâÂÂsquare test was used to compare discrete values between groups. Results:Mean (standard deviation [SD]) age in pregnant patients was 24.1 (3.3) years while 32.6 (10.5) years in nonâÂÂpregnant patients. 71.1% (37/52) of the patients were primigravida and 28.8% (15/52) patients were multigravida, by natural occurrence. Mean (SD) gestational age when infection occurred was 27.5 (7.2) weeks. Among pregnant women, 63.4% (33/52) were in 3rd trimester. Jaundice 1âÂÂ5 days before presentation was seen in 51.9% (27/52) pregnant and 44.2% (23/44) nonâÂÂpregnant women. Myalgia/arthralgia, fever, nausea/vomiting, right upper quadrant pain, jaundice, dark urine, lightâÂÂcolored stools, pruritus, diarrhea, altered sensorium and hematemesis/melena were presenting features. In pregnant group, 46.1% (24/52) patients developed encephalopathy while in nonâÂÂpregnant group 34% (15/44) developed this complication. Among pregnant cases, 67.3% (35/52) survived and 32% (17/52) cases died. In nonâÂÂpregnant group, nearly 90% (40/44) patients survived and only 9% (4/44) patients died. This difference was statistically significant (P < 0.01). Adverse fetal outcome was seen in 71.1% (37/52) pregnant women with acute hepatitis E, including preâÂÂterm delivery in 23% (12/52), stillbirth in 23% (12/52), abortion in 3.8% (2/52) and intraâÂÂuterine fetal death in 21.1% (11/52) patients. Conclusions: There is significantly higher occurrence of hepatitis E infection in pregnant women than in nonâÂÂpregnant women, which increases with gestation, with associated fulminant hepatic failure, maternal mortality and worse fetal outcome.