Male infertility is when a man has a poor chance of making his female partner […]
A woman who’s never been able to get pregnant will be diagnosed with primary infertility. […]
Male infertility usually occurs because of sperm that is abnormal, because of inadequate numbers of sperm or problems with ejaculation. Sperm can be considered abnormal for two possible reasons: unusually short life span of the sperm and/or low mobility.