In about one-third of cases, infertility is due to female factors. In another third of cases, infertility is due to male factors. The remaining cases are caused by a mixture of male and female factors or by unknown factors.
In about one-third of cases, infertility is due to female factors. In another third of cases, infertility is due to male factors. The remaining cases are caused by a mixture of male and female factors or by unknown factors.