Ten patients presenting with anovulatory syndrome (AS, 4 patients), inadequate luteal phase (ILP, 3 patients) and short luteal phase (SLP, 3 patients) were treated with epimestrol for 29 cycles in total. The initial treatment was always 10 mg/day for 10 days followed by a modification of the daily dose and/or length of treatment needed. Ovulation was induced in all 4 AS patients with an adequate luteal phase (ALP) in 3 of them. In all other patients (with ILP and SLP) an ALP was induced; 2 of them became pregnant. No side-effects were reported.