The idea is that being a nurturing father may actually lower your testosterone levels. The researchers also cited previous studies that found that fathers who are much more involved with the day-to-day care of their children tend to have lower testosterone levels. Researchers suggest that higher levels of testosterone, which is associated with larger testicles, may help steer some men toward behaviors other than the hands-on care of their children. Male gorillas, on the other hand, tend to have smaller testicles and are quite protective of their offspring. Their focus seems more geared toward mating than protecting their young. Male chimpanzees, for example, tend to have larger testicles and create a lot of sperm. Researchers have noted evolutionary developments in other primates to underscore these findings. If you have small testicles, you may be more likely to be an involved, nurturing parent. Your testosterone levels and sperm count can be measured to determine if they are related to your fertility troubles. If you’re trying to father a child and you and your partner have been unsuccessful, you should consider seeing a fertility specialist.

However, you may have smaller-than-average testicles and be just as fertile as someone with larger testicles. In a 2014 study published in the African Journal of Urology, researchers found that smaller testicle size corresponded to reduced sperm density.

About 80 percent of a testicle’s volume is comprised of the seminiferous tubules, the tube-like structures that create sperm cells.

Since sperm is produced in your testicles, you may produce less sperm than average if you have smaller testicles. secreting the male hormone testosterone, which is important in the development of male physical characteristics and sex drive.Does testicle size affect testosterone and fertility?

Men with tiny balls