Is infertility exclusively a female problem?

No. The incidence of infertility in men and women is almost identical. Infertility is exclusively a female problem in 30-40% of the cases and exclusively a male problem in 10-30% of the cases. Problems common to both partners are diagnosed in 15-30% of infertile couples. After thorough medical investigations, the causes of the fertility problem remain unexplained in only a minority of infertile couples (5-10%).