From a prospective and length wise survey, the forecast of the gestational trophoblastics tumours was estimated. Between 1st November 1996 and 31st October 1997, 102 cases of gestational trophoblastics tumours was registered. The medium profile was a "Ouoloff" (54%) or "Serere" (20%), 30 years old, multiparous, without, security social cover (100%). Looking back over 2 to 12 months, 25% of cases has worthily grown; so 10% of cases of choriocarcinoma with 3 death. The average cost of post-molar follow-up was about 120,000 F CFA. Because of the expensive cost of antimitotics, between 180,000 and 278,000 F CFA, their availability wasn't frequent and their use was restricted.