According to the World Health Organization (WHO), the main factors affecting male infertility are sperm concentration, semen volume, total sperm count, liquefaction, sperm pH, sperm motility and sperm morphology. Therefore, a definitive diagnosis for male infertility must consider many factors. Since the OVRY™ Male Fertility Test only measures sperm concentration, using this test alone is not enough to determine whether or not a person is fertile. However, since lower than normal sperm concentration is an important indicator of male infertility, this test is a helpful and proactive step to identify possible obstacles for people trying to conceive.