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What causes infertility? PDF Print E-mail

 

Roughly one-third of infertility cases can be attributed to male factors and another one-third to factors that affect women. For the remaining infertile couples, infertility is caused by a combination of problems in both partners (about 13%) or is unexplained (about 10%).

The most common male infertility factors include azoospermia (no sperm cells are produced) and oligospermia (few sperm cells are produced). Sometimes, sperm cells are malformed or they die before they can reach the egg. In rare cases, infertility in men is caused by a genetic disease such as cystic fibrosis or a chromosomal abnormality.

 

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The most common female infertility factor is an ovulation disorder. Other causes of female infertility include blocked fallopian tubes, which can be caused by pelvic inflammatory disease or endometriosis (a sometimes painful condition causing adhesions and cysts). Repeated miscarriages may be caused by congenital anomalies (birth defects) involving the structure of the uterus and uterine fibroids.

 

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