Can a blood test determine if a person has depression?

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Donna Hill Howes, RN
Family Medicine
A blood test cannot be used to diagnose depression. But your doctor may take a sample of blood for testing to rule out other illnesses that can cause symptoms similar to those of depression.

Continue Learning about Depression Diagnosis

Depression Diagnosis

Depression Diagnosis

Medical and mental health professionals generally do not use blood or brain tests to make their diagnosis of depression and instead rely on a physical examination, family history and questions regarding your depression symptoms. B...

ecause general feelings of sadness, fatigue and lack of interest in everyday activities can accompany many other conditions, including ADD/ADHD, anxiety and bipolar disorder, depression can be difficult to diagnose.
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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.