How much sperm concentration is normal?

Generally speaking, the normal sperm concentration should be more than 60 million per ml. Sperm concentration can affect fertility problems, so semen analysis is needed to determine. If the sperm concentration is less than 40 million per ml, the probability of pregnancy will be significantly reduced. Less than 20 million is called oligozoospermia, and the possibility of pregnancy will be particularly low. Sperm concentration deficiency is often related to age, changes in accessory gonad function, infectious factors, genetic abnormalities, environmental pollution, and toxic, harmful substances and rays, subtle changes in reproductive hormones, etc. Under physiological conditions, if sperm density is continuously ejaculated, sperm density will also decrease. After 2-3 days of normal ejaculation, sperm density will return to a basically normal state.