If you are masturbating too much your sperm count may be low. Take a break.
No it's not normal for a 13 year old to stop producing sperm. I guess you can't ejaculate when you masturbate. Probably because you masturbated too much and it needs time to reproduce.
If both are healthy, both will be producing sperm.
yes it is very normal
You will continue to produce sperm your whole life you usually start producing sperm when you hit puberty and beyond.
No, a plant does not even produce sperm and egg cells.
Your body usually starts producing sperm when you are about 13 years and continues 24/7 into your eighties and beyond.
Sorry to say, but no. Once the testes stop producing sperm, well buddy, it is stopped. :(
When its a gray/clear color it's means you just producing new sperm or just starting to produce sperm
Whether a person with azoospermia can produce sperm depends on the type of azoospermia they have. People with pre-testicular azoospermia usually make very little if any sperm. People with testicular azoospermia may make sperm, but again the amount is minimal. People with post-testicular azoospermia may make normal amounts of sperm, but it cannot be ejaculated.
you have hit puberty..... its normal.
He needs to see a urologist.
Of course they do. Sperm is produced whole life time
Most Men can and do produce sperm all their life, Unlike women, men produce live sperm continuously throughout their life. As they age, the ability to get an erection may impeded their ability to deliver it, and new research shows that it is not as lively & vigorous as men age, but most men produce sperm from Puberty throughout their lifetime.