1 doctor weighed in:

How do you find out your blood type without a blood test?

1 doctor weighed in
Dr. Gurmukh Singh
Pathology

In brief: Expensive option

Genetic testing using a buccal swab can determine a person's blood type, but this is an awfully expensive way to do the test that can usually be done inexpensively on a drop of blood from a finger stick.

In brief: Expensive option

Genetic testing using a buccal swab can determine a person's blood type, but this is an awfully expensive way to do the test that can usually be done inexpensively on a drop of blood from a finger stick.
Dr. Gurmukh Singh
Dr. Gurmukh Singh
Thank
Get help from a real doctor now
Dr. Peter Kurzweil
Board Certified,
47 years in practice
16M people helped
Continue
111,000 doctors available
Read more answers from doctors