By SpermCenter - Posted on August 8th, 2010
Sun, 2010-08-08 23:00 | SpermCenter
It depends on the particular donation. Some men may produce 1 or 2 vials with one donation; others might produce 3 or 4, or even more.
There are a number of factors that influence this, the most significant being how long the sperm donor remains abstinent before donating. Abstinence can make a big difference in the quantity of semen produced in one donation.
This is why sperm banks usually ask their donors to abstain for a few days, at minimum, before they donate.