The only way to determine a person's blood type is to ask them.
If you want to know your own, it's best to visit a clinic, where they will test your blood and tell you what blood type it is, and if it has any genetic diseases.
Blood type
You cannot determine your blood type from a website. You should go to your doctor and have your blood tested. Ask your doctor what blood type you are.
You don't have to know your blood type to donate. When you get to the donation site they will test your blood with a small sample to determine your type.
Blood type does not determine sterility.
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No. Persons with type O blood can only receive type O blood.
You can visit your doctor's office and they can do a test to determine which blood type you are. You then may go to American Red Cross website and they can help determine if your blood type is rare.
In a medical situation, technicians can determine your blood type in two minutes or less to accurately determine your ABO/Rh type crossmatch in order to give you the appropriate blood type.
There are many ways in which one can determine their own blood type. The first option is first to go to a doctor and request that they preform the test in the office. The second way to determine blood type is to go to the local drug store and buy an at home blood type test.
A person with type o blood is a universal donor and can donate blood to persons of any blood type.
In Asia we believe blood type defines a persons character
You are not alone in not knowing what blood type you are. However, to the best of my knowledge, there is no way to determine what one's blood type is by visual examination alone. A simple blood test would be the best option when trying to determine your individual blood type.