The best childbearing age for men

Compared with women, men are more likely to be fertile at a later age, some even reaching 90 years old. However, the strength and quality of fertility are closely related to age.

Men's reproductive capacity is the strongest between the ages of 30 and 35, and then it starts to decline, but the speed of decline is not obvious. Moreover, because the quality of men's semen is affected by many factors, sometimes the impact of external factors is far greater than the impact of testicular decline caused by aging.

The function of testicular tissue begins to decline gradually from the age of 30, and worsens with age. The number of spermatogenic cells at all levels decreases, the motility of sperm in semen decreases, the number of dead sperm increases, the volume of the testicles gradually decreases, and the hardness decreases.

At the age of 20-29, about 90% of the seminiferous tubules contain sperm cells, which drops to 50% at the age of 40-50, and remains roughly at this level before the age of 70. After the age of 80, it gradually drops to about 10%. Early physiological changes are not enough to significantly affect male fertility. Male fertility only decreases significantly around the age of 40.

After the age of 40, male fertility declines, but it is not obvious. After the age of 55, fertility weakens significantly, and dead sperm and abnormal sperm increase significantly in semen. After the age of 70, testicular atrophy is obvious, and sperm production weakens further until it stops. However, these changes vary greatly from person to person. Some people can make their young wives pregnant at the age of 90, while others have lost their fertility in their 50s.