Discussions about fertility and age often focus on women, but research shows that men’s reproductive health also plays a role in family planning decisions.
While men are capable of fathering children later in life—and many do—scientists note that age-related changes can still affect male fertility. This makes age an important factor for couples considering when to start or expand a family.
Male fertility can change with age
Unlike female fertility, which is known to decline more sharply after the mid-30s, male fertility tends to decrease more gradually. However, it is not immune to aging.
Research suggests that starting around age 40 to 45, some men may experience changes in sperm quality and reproductive function. These changes can make conception more difficult in some cases and may also influence certain reproductive outcomes.
Experts emphasize that later fatherhood is still very possible for many men, but age can be one of several factors to consider when planning a family.
