Abstract
Objective: to assess maternal and fetal outcomes in Jordanian women with known Diabetes Mellitus or Gestational Diabetes.

Methods: retrospective medical record conducted on 234 pregnant women who were followed at the National Center for Diabetes Endocrinology & Genetics and Gynecological Department in Jordan University Hospital between 2004-2009. About 148 subjects had Gestational Diabetes Mellitus (GDM) and 86 with known diabetes mellitus (DM)
(Type 1 = 28, Type 2 = 58).

Results: caesarean section were more frequent in GDM subjects than in DM group (47.3% vs. 44.2%). The frequency of pre-term delivery tend to be higher in DM group than GDM group (9.3% vs. 8.1%). The abortion was more in DM group than GDM group (11.6 % vs.4%),macrosomia ,hypoglycemia, hypocalcaemia .polycythemia and congenital malformation were more in DM group than GDM group.

Conclusion: The results showed that DM group witnessed more abortion and pre-term delivery compared to GDM groups. The caesarean section was higher in GDM compared to DM groups .GDM group had better fetal outcome thane DM group ,indicating that DM ( type 1 ,type 2) in pregnancy is a serious condition.

Key words: Diabetes Mellitus, gestational diabetes, fetal loss.