The Best Infertility Blogs of the Year For anyone hoping to raise a child, infertility can be disruptive and heartbreaking. A semen analysis can help figure out the cause of male infertility. In: Campbell-Walsh Urology. It is the most common cause of azoospermia no sperm production. Science Age of Humans.
This is true between different laboratories, and even within the same laboratory. For example, if the sperm count is very low or very high, a man may be less fertile. Viscosity is considered "normal" if the liquefied specimen can be poured from a graduated beaker drop by drop with no attaching agglutinum between drops.