Is knowing your blood type required/important to donate blood?

when you donate blood at school you really don't have to know your blood type......thats what doctors and scientists are for theyll check and analyze your blood to see if its good and what type it is........though if your curious you can always find out your blood type by getting tested

My school had a blood drive too.
Though i didnt participate other people say that they tell you your blood type. I dont think it matters what your blood type is. But who knows they might do the blood donation differently.

Knowing your blood type isn't important for donating, but knowing your blood type in general is important in case you need blood donated to you (in case of an emergency)

test your blood. it is easy. so, donate.

Not at all!  In fact, donating blood will help you learn your blood type.  When you donate blood (a little over a pint) a small portion of your blood is sent for analysis.  The tests determine your blood type, as well as whether you have any diseases.  In addition to STDs, your blood will be checked for other viruses/antibodies that are completely harmless to you, but could be devastating to a premature baby (often the recipient).

Most places where you donate blood will keep a record of you, so that the next time you donate some of your information is filled in for you ahead of time, including your address and blood type (don't worry - it gets tested for the same things every time)!

If not, you should be able to call and ask if they were able to determine your blood type.  Be careful though, if you call and ask generically about your test results, they might assume you were using the blood donation process to screen yourself for any STDs, and they would ask you not to donate anymore.

No. It's fine to donate blood without knowing your blood type. Your blood will be tested anyway during the donation procedure to confirm what blood type it is.

Incidentally, O-type blood is very good for donation, as the other main groups (A, B, and AB) can all receive it. People with AB blood can receive blood from anyone, but only donate to other AB-type people.

NO,of course not.
WILL be tested anyway.