Cut your bought or home grown spring onions about 3cm (1in) above the root. Use the leaves in cooking and add the stem/roots to a glass with clean water to rehydrate roots. Change water daily & keep in a well lit position such as a windowsill or kitchen bench. Watch green leaves regrow.
Basically, a hard thwack to the balls would do the trick.   Also, a man could stop producing sperm because â¦of a hormone imbalance, especially age related.     Men never stop making spermatazoa after the onset of puberty, as long as their testicles remain intact.
Your penis grows longer and wider during puberty. That's the time major changes occur in the body that make you look more like a man and less like a child. Most guys start puberty between ages 10 and 14. But, puberty happens at different times for everyone. You may have a penis that's grown to its full size as early as age 13 or as late as age 18. Your penis stops growing when you finish puberty. Exactly when that happens, though, varies from person to person.