Infertile couples are 30-40% reasons caused by the man and 30-40%
are reasons caused by the woman. In 20-40% these problems belong to
both the man and the woman. In order of frequency, the infertility
reasons for the woman is 15% egg related and 15% uterus-tube related
problems; in 15% of the couples the available diagnostic tests may
seem normal and no visible problem can be detected. This situation
is called unexplainable infertility.
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