Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Glucose-6-phosphate dehydrogenase deficiency ?
    ### Response:
    Glucose 6 phosphate dehydrogenase (G6PD) deficiency is a hereditary condition in which red blood cells break down (hemolysis) when the body is exposed to certain foods, drugs, infections or stress. This condition occurs when a person is missing or doesn't have enough glucose-6-phosphate dehydrogenase, an enzyme which helps red blood cells work properly.
    