Normal sperm amount

According to the World Health Organization:

• The concentration of spermatozoa should be at least 20 million per ml.
• The total volume of semen should be at least 2ml.
• The total number of spermatozoa in the ejaculate should be at least 40 million.
• At least 75 per cent of the spermatozoa should be alive (it is normal for up to 25 per cent to be dead).
• At least 30 per cent of the spermatozoa should be of normal shape and form.
• At least 25 per cent of the spermatozoa should be swimming with rapid forward movement.
• At least 50 per cent of the spermatozoa should be swimming forward, even if only sluggishly.