Postmolar contraception.

Recent studies on the etiology and the cytogenetics of trophoblastic tumors suggest that hydatidiform mole and choriocarcinoma may be conditions with no causal relationship. With the advent of newer diagnostic methods which aid in the early diagnosis of pregnancy and help to differentiate it from abnormal pregnancy together with the increasing concern over the safety of use of the contraceptive measures following a hydatidiform mole, it is suggested that a period of postmolar contraception may no longer be necessary. The follow-up of these patients should include serial sonography in association with other currently available methods. Pregnancy should also be allowed to occur naturally if the patient so desires.