"This guy has a few tails, at least two," Dr. Allison Rodgers, a reproductive endocrinology infertility specialist at Fertility Centers of Illinois, remarks in one video, viewed over 23 million times.

Male infertility is more common than many people realize—and it often has treatable causes. Learn what factors can affect ...

Why are doctors comparing fertility testing to cholesterol checks for men in their 30s? Discover the hidden risks, early ...

Scientists have long considered that the world’s most common sexually transmitted infection, human papillomavirus, or HPV, may be a driver of infertility. Most research about HPV’s potential impact on ...

Men are swapping out their underwear over growing concerns about fertility and hormone health. The movement has been happening online, and some men are attempting to swap out their polyester shorts ...

Did you know intermittent fasting and diets like keto diet can have distinct effects on men and women, particularly when it comes to fertility? If you're considering intermittent fasting or keto diet, ...

Add Yahoo as a preferred source to see more of our stories on Google. “Fertility in general has always been pinned on the woman, and that makes no sense." (Maskot—Getty Images) Sperm health is still ...