Welcome to JA!
Injecting testicles can be source of infection esp. if the the needles are not sterile
Hello, yes, she uses alcohol to sanitize the area, and clean sterile needles
some pain at first, and a burning in the cords after
any risk to damage of the glands?
the other possible side effect could be direct injury to the testicles
with the needle
Saline is not harmful as it is an isotonic fluid
better than sterile water?
but direct injury with needle to the glands or testicle can be dangerous!
off course better than sterile water
sterile water can harm the testicles as it increases the tugidity
of the glands and may effect fertility
sterility is not a concern, but do not want to become impotent
Means it gets absorbed in the testicular cells more rapidly and make them swell!
Where as saline being isotonic does not enters the cells
saline with a preservative ok?
If you are worried about fertility, then i would suggest to avoid such activities as their is always a potential risk of injury
with the needles
done having children