This brings bizarre new meaning to the term “ballroom dancing.” A 26-year-old man in India revolted the internet after it was revealed that his swollen right testicle was caused by microscopic worms ...

Research from University College London has shown that male flies that are genetically programmed to produce only female offspring compensate for their low sperm count by growing larger testes. Male ...

Dear Dr. Douma: Lately I've had blood in my urine. It's becoming more frequent -- every two days. And one of my testicles is very enlarged -- the size of a tennis ball. Can you give me an idea as to ...

Q: Lately I've had blood in my urine. It's becoming more frequent -- every two days. And one of my testicles is very enlarged -- the size of a tennis ball. Can you give me an idea as to the problem? A ...

There are different reasons why one testicle may appear bigger than the other. If one of your testicles is slightly bigger than the other, don’t panic, this is completely normal for most men and boys.