Many people who recover from COVID-19 experience long-term symptoms, such as brain fog or heart problems. Increasing evidence suggests that the virus can also impair fertility. Now, researchers ...

Human reproduction requires both male and female gametes. Gametes are special sex cells that contain the genetic information necessary to create a new life. Men produce millions of gametes called ...

Men whose mothers were exposed to stressful life events while they were in the first 18 weeks of pregnancy may have reduced sperm counts when they become adults, according to a new study. Men whose ...

A previously unrecognized genetic cause for two types of birth defects found in newborn boys has described in a report. Cryptorchidism is characterized by the failure of descent of one or both testes ...

Is the world in the midst of a male fertility crisis? Or are we overstating the problem? Here's everything you need to know: How has male fertility declined? Human sperm count has fallen by over 50 ...

Prostate and testicular cancer both relate to the male reproductive system. While some people may confuse them, they are separate conditions that have different risk factors, symptoms, and outcomes.

The structure and function of the reproductive tracts of the spider crab Inachus phalangium were investigated, focusing on sperm transfer, sperm storage in the seminal receptacles, and spawning. Males ...