Primary hypogonadism is when the gonads do not function properly, leading to a decline in male sex hormones (hypoandrogenism) and female sex hormones (hypoestrogenism). The possible causes of ...

The ovary is the female gonad, which houses egg cells. Women are born with all the eggs they will ever have, and each egg is ...

But the cost of the gonads — the orange tongues found inside an urchin — is steep. Just one 200-gram box of premium gonads can cost $100. In Japan, some sea urchins can sell for five times that.