Female infertility accounts one-third of all the infertility cases and one-third of male, whereas the reason for the remaining cases are still unclear. In unexplained infertility, the medical evaluation of both male and female show normal results. This condition occurs mostly in secondary infertility where the couple already has children
According to WHO, sperm count less than 15million sperm/milliliter semen is considered as low sperm count or oligospermia. In few cases, men who can produce sperm cannot ejaculate sperm because of an underlying medical condition called azoospermia
In low sperm count, sperms cannot reach the vas (tube that transport sperm) because of the less quantity whereas, in poor sperm quality, sperm cannot swim towards the egg. Thus, low sperm count and poor sperm quality hinders fertilization.