A research on the success of the Barcelona clinic Eugin ova donations ensures that the recipients of black present pregnancy rates lower as compared to Caucasian race. A retrospective study, conducted by the Catalan Eugin clinic to more than 1,000 recipients of different ethnic groups, says that these women race influences the ultimate success of egg donations. Eugin specialists indicate that the breeds studied were the black (women of African and Caribbean countries), Asian (the vast majority of Southeast Asia and the far East) and Caucasian. It should be noted that the objective of the research was comparing pregnancy rates in women receiving oocytes of black and South Asian with a control group of Caucasian recipients, to determine the impact of race as a possible Predictor in egg donation cycles. The research results show that patients recipients of eggs of black race are some likely of pregnancy term significantly less in comparison with the recipients of Caucasian race. For this reason, the authors of the study point out that the African and Caribbean origin of these women can be considered a factor negative prognosis for achieving pregnancy after an egg donation. In this sense, experts have expressed that that associate this phenomenon with a higher prevalence of infertility by factor tubal or an increased presence of uterine fibroids in the recipients of blacks in the Caucasian. However, specialists have pointed out that not found no difference when compared with the Caucasian Asian race. Close author: Complete articles by a team of Invitro tv, for donations of eggs and IVF and a tipsos ideas please visit:, a comprehensive resource for a pregnant women.