Gonadal function after renal allotransplantation.

Our data suggest that impaired testicular function was corrected, but not completely, by renal allotransplantation. One patient with impaired renal function showed azoospermia and six patients with normal renal function oligospermia. It was observed that conception might occur when the sperm count was below 10 million/ml. The elevated FSH among patients with azoospermia or oligospermia indicates a responsive pituitary. The positive clomiphene test suggests that the function of the hypothalamo-hypophysial axis is normal.