40 to 45 years
People also ask
When does fertility decline in men?
Other studies show that the decline begins around age 35鈥攊n one study, men over the age of 35 had fertility rates of 25%, compared to men under 35 who had fertility rates of 52%.
What age are men most fertile?
Although we haven鈥檛 yet pinpointed exactly what age men are most fertile, we know that male fertility decline typically begins at the age of 35 and gets steeper at 40. The Centers for Disease Control and Prevention (CDC) reports that most men experience significant age-related fertility decline after they reach the age of 40.
When do men stop producing sperm?
Men never stop producing sperm unless some specific disease or damage process takes place, although sperm count might lower as a man ages. As far as anyone knows, there is no set age after which a man could not theoretically father a child.
What age do men stop getting pregnant?
But a decline in quantity started in some men as early as age 34. Since then, other studies back up this initial conclusion. Age determines, to some extent, the possibility of conception. One man below the age of 25 may take a few months to get pregnant with a woman of the same age.