Is there a correlation between having big balls and, well, “having balls”?
Not much, mostly because “having balls” in the sense of being a risk-taker probably has more to do with brain chemicals (such as dopamine) than with testosterone. Guys with unusually big testicles may also have high testosterone levels and thus may be more prone to aggressive behavior, but that’s not quite the same as “having balls.”
Read more of Dr. Fisch’s advice in his book:
Size Matters; The Hard Facts About Male Sexuality That Every Woman Should Know…And All The Knowledge You Need To Improve Your Sex Life