- Oct 25, 2007
okay so i have swollen lymph nodes under my arm pits and my groin, i had the one in my groi...

A blood culture is a laboratory test to check for bacteria or other microorganisms in a blood sample. Most cultures check for bacteria.
A culture may be done using a sample of blood, tissue, stool, urine, or other fluid from the body. See also:
Culture - blood