Infertility is a disease of the reproductive system that impairs the body's ability to perform the basic function of reproduction. Although conceiving a child may seem to be simple and natural, the physiological process is quite complicated and depends on the proper function of many factors, including the following:
Production of healthy sperm by the man
Production of healthy eggs by the woman
Unblocked male genital tract that allows sperm to exit the body
Unblocked fallopian tubes that allow the sperm to reach the egg
The sperm's ability to fertilize the egg
The ability of the fertilized egg to become implanted in the uterus
The average chance to conceive for a normally fertile couple having regular, unprotected intercourse is approximately 15-25 percent during each menstrual cycle. In most couples, conception occurs within about 12 months. However, infertility affects about 15 percent of couples of childbearing age. Infertility is not just a woman's concern. A problem with the male is a cause of infertility in 50 percent of infertile couples. About one-third of infertile couples have more than one cause or factor related to their inability to conceive.