Semen is the total ejaculate. The sperm content in the ejaculate is a tiny part (about 5% of the total volume, the rest is lubricating fluids and nourishment for the sperm while it is on its way.
Semen content and semen volume would be two different things & your question is ambiguous.
If the sperm content of the semen is low you wouldn't be able to conceive children. If the volume is low, you just wouldn't have much ejaculation. you could still have an orgasm, just wouldn't be much semen there.
Nothing. It's just gross.
Nothing will happen if the man providing the sperm is completely healthy. Some STD's can be transmitted via the semen, the fluid that carries sperm.
Consuming your own semen will do you no harm.
It is impossible to do. Females simply can and do not produce semen.
yes
No, they don't.
Nothing. Nothing at all happens when the semen of two men is mixed, whether they are gay or straight.
No.
There is normally no blood in semen. However, if a guy ejaculates especially strongly, some tiny capillaries might burst, injecting a small amount of blood into the semen. Especially in older men, if there is cancer in the prostate, there can be quite a bit of blood in the semen.
There are tests men can take at a doctors office. Various tests are available. Sperm count can be done to see the quantity present in semen (low sperm count can be a sign of disease and infertility). The quality of the semen can also be tested.
no. most men continue to produce semen through out their life time, well into their seventies and eighties.
Ejaculation in men happens when they are sexually excited. The ejacualted product contains combination of semen and sperm.