Weak sperm is a sign that warns of a decline in male reproductive health, which should be recognized early and treated promptly.

The number of sperm and the concentration of semen in each ejaculation depend on the man’s health status at that time. Specifically, normal sperm counts range from 15 million to over 200 million sperm per milliliter of semen. Thus, if semen contains fewer than 15 million sperm per milliliter, it is considered low, whereas more than 200 million sperm per milliliter is considered high.