Hydatidiform mole pregnancy divided into two major groups, complete molar pregnancy with diploid kayrotype and partial moles which is triploid kayrotype(1).The incidence of molar pregnancy in Europe and north America 1:2000 Pregnancies which in Asia the incidence is as high as 1:200 live births(2).Woman aged over 40 and below 20 years are particularly at risk(2) . Women with a history of one mole have a 20 folds risk of recurrence(3) , patients with molar pregnancy require careful HCG follow up after evacuation to insure complete remission because the principle risk is choriocarcinoma which occurs in 3% of the cases, the risk is low it partial moles(4).Effective contraception is advised for one year after evacuation during which follow up with an HCG assay is therefore essential, the determination repeated every 1-2 weeks until the HCG disappears, then monthly for 6 moths(5) but unfortunately despite strong encouragement, some patients with hydatidiform mole conceive a new pregnancy before completing a recommended follow up So our aim in this study is to determine the pregnancy outcome in patients with partial or complete molar pregnancy who conceive before completing the recommended HCG follow up.
