A Sperm function test is an examination that measures whether the quality of sperm is good enough to fertilize the ovum (egg). For performing this examination, sperm must be produced in satisfactory numbers. Sperm must exhibit normal shape and motility, should cross the cervical mucus and the uterus. If any of these parameters are not met, then male infertility may result.
The sperm function test also detects irregularities in sperm which naturally bring about infertility. The diagnosis of male fertility is carried out after examining different parameters:
• Sperm count: the number of sperm cells present in the ejaculate
• Sperm motility: percentage of motile cells
• Sperm morphology: percentage those are normal in shape.
If the concentration, morphology, and motility of the sperm are reduced, all these directly affect the motile sperm count. And this, in turn reflects the capacity of attaining a high sperm concentration to the egg site for completing the process of fertilization. If the basic semen analysis shows all these sperm irregularities or if unexplained infertility has been diagnosed, then the couple must move forward towards the analysis of sperm function test.