Fig. 1

Effect of oral medroxyprogesterone (20 mg/day) and percutaneous testosterone (50–125 mg/day) treatment on sperm count. Number of subjects n = 30. Subjects with sperm counts > 1 million/ml at 3 months (n = 5) were considered as poor responders, while good responders were subjects with sperm counts < 1 million/ml at 1 month (rapid responders, n = 4), 2 months (intermediate responders, n = 11) and 3 months (slow responders, n = 10)