Infertility is a health worry that affects approximately one out of every six couples, or 15% of couples. Infertility is the diagnosis given to a couple who are unable to conceive over the course of a year. If the problem stems from the man, there is said to be male infertility. If it stems from the woman, there is female infertility. In a third of infertility cases, the man is infertile; in another third, the woman is infertile; and in the last third, either both are infertile or no cause can be found. Male infertility stems from factors such as: low sperm production, abnormal sperm function or blockages that hinder the delivery of sperm, hormone imbalances or blockages, absence of some of the ducts in the male reproductive organs, lifestyle factors and age-related factors. Azoospermia or the inability to produce sperm is the cause of approximately 15% of male infertility cases. The inability to conceive a child is the main sign of male infertility, and may be the sole sign.
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