Rare sperm

Oligospermia is a sperm count that is lower than normal healthy fertile men. It is now considered that sperm count is less than 20 million per ml as oligozoospermia. However, it is often accompanied by changes such as low sperm motility, poor forward mobility, and high sperm deformity. At this time, it is called weak azoospermia, and oligospermia is a more common male infertility condition.