Oocyte donation was performed by gamete intrafallopian transfer in 61 women, 34 of whom were amenorrhoeic. The mean age of the donors was 32 years (range 23-38). Seventy-five treatment cycles gave 29 clinical pregnancies, of which 21 reached term, 3 continue, and 5 were lost (3 miscarriages, 1 tubal, and 1 cervical). 11 (38%) of the women who became pregnant were over 42 years old. When more than four oocytes were transferred, many of the pregnancies were multiple. 8 (38%) of the pregnancies that came to term were complicated by pre-eclamptic toxaemia. When oocytes are obtained from young women, the fertility potential is high irrespective of the recipient's age.