Female infertility factors contribute to approximately 50% of all infertility cases. One-third of all infertility cases are due to female infertility alone. Sometimes, the cause of infertility is never found. A combination of several minor factors in both partners could cause unexplained fertility problems. Although it's frustrating to get no specific answer, this problem may correct itself with time. Most cases of infertility in women result from problems with producing eggs. In primary ovarian

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Measurements of Fertility: Terms, Calculations & Interpretations