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.
The penis will stop growing when puberty is over. So most boys' penises will stop growing between the age of 16 and 22. There is nothing much you can do to increase, or decr â¦ ease the size of your penis. It is going to grow to the size it is genetically destined to be, regardless of what you do to it.