Causes of Infertility

What Is Infertility?
According to the National Infertility Association, infertility is a medical condition of the reproductive system that results in the inability to conceive or carry a pregnancy to term. The condition is diagnosed by a physician, usually after a couple has had a year of unprotected, regular intercourse without conceiving, or when pregnancy occurs but does not result in a live birth.

Causes Of Infertility
Infertility can be due to factors in either the female or the male. 35-40% of the time the cause can be traced to the female partner, and 35-40% of the time infertility can be linked to the male partner. Sometimes conditions in both partners play a role. Other times the reason for infertility remains unknown.
Common Causes For Women
  • Impaired ovulation due to disease, infection, birth defects, or abnormal hormone production
  • Blocked fallopian tubes from disease or scar tissue
  • Inability of the uterus to hold the embryo (this may be due to a variety of reasons, including scar tissue on the walls of the uterus)
  • Endometriosis
Common Causes For Men
  • Low sperm count
  • High percent of abnormally shaped sperm
  • High percent of sperm that are not moving forward
  • Ejaculation dysfunction
Sperm production can be affected by blocked passageways, fevers, infections, or birth defects. Both men and women can develop antibodies that attack sperm and prevent fertilization.
Other factors that can contribute to infertility include stress, smoking, alcohol use, excess weight and overall health.