Brief Answer:
Evaluation of Lethargy

Detailed Answer:
Hello,
Thank you for trusting HealthcareMagic,

Lethargy can be a manifestation of very wide range of conditions.

Here are examples to mention a few:
-Anemia, blood disorders, vitamin deficiencies
-Hypothyroidism (decreased thyroid levels)
-Auto immune disorders
-Infections, Inflammatory conditions
-Diabetes
-Hypertension
-Cardiac problems including coronary artery disease, heart failure
-Depression, early dementia
-Sleep problems like sleep apnoea
-Underlying Malignancies
-Certain medications

Lethargy alone is a very non-specific symptom. If you have any other symptoms associated with fatigue, please mention here so that I can give a bit more specific answer.

If fatigue alone is your concern, you may need extensive evaluation at this point.
A thorough physical examination, Complete blood count, Hemoglobin, Complete metabolic profile, Thyroid function test, Blood pressure measurement, EKG, Urine analysis, Stool analysis are all warranted for the evaluation of fatigue.

Hope I was able to help you
Please feel free to address further concerns here

Regards,
Dr.Lekshmi

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