This protocol will test the hypothesis that a lower risk therapy (alternate-day, lower dose, shorter-term prednisone) will induce remission of ovarian failure caused by autoimmune oophoritis. The protocol will use a double-masked, placebo-controlled design. Patients with premature ovarian failure who have serologic evidence of steroidogenic cell autoimmunity will be candidates. Successful outcome will be defined as a return of ovulation as determined by weekly serum progesterone levels. The hypothesis that short-term, alternate-day prednisone therapy restores ovulation will be tested with an equality of proportions test comparing the proportion of patients who ovulate during placebo with the proportion of patients who ovulate during prednisone therapy.