Have a symptom?
See what questions
a doctor would ask.
Symptoms » Feeling lethargic

Feeling lethargic

Contents for Lethargy
  1. Introduction: Lethargy
  2. Causes (399 conditions)
  3. Drug causes (146 listings)
  4. Drug interaction causes (375 listings)
  5. Diagnostic tests (47 listings)
  6. Questions your doctor may ask (and why) (32 listings)
  7. Combined symptoms
  8. News (25 listings)


Feeling lethargic: Feeling lethargic is listed as an alternate name or description for symptom:

Causes of Lethargy (Feeling lethargic): See detailed list of causes below.

Lethargy (medical symptom): feeling of tiredness

Introduction: Feeling lethargic

Lethargy (medical symptom): Lethargy is a fairly imprecise description of the feeling or slowness, sluggishness, tiredness, or lack of energy. Lethargy in common usage may mean many things, including fatigue, drowsiness (sleepiness), lethargy, tiredness, malaise, listlessness, or weakness (including muscular weakness). The causes of these other similar symptoms also need to be investigated in researching a symptom of lethargy. Nevertheless, any type of lethargy symptom can indicate a serious medical condition and needs prompt medical investigation.

Causes of Lethargy (Feeling lethargic)

The list of medical condition causes of Lethargy (Feeling lethargic) includes:

All 399 causes of Lethargy

Related Symptoms for Feeling lethargic

Research the causes of these related symptoms that are similar to, or related to, the symptom Feeling lethargic:

Broader Symptom Types for Feeling lethargic:

Research the causes of these symptoms that are more broader types of symptom than Feeling lethargic:

More Symptom Information for Feeling lethargic

For a medical symptom description of 'Feeling lethargic', the following symptom information may be relevant to the symptoms: Lethargy (symptom). However, note that other causes of the symptom 'Feeling lethargic' may be possible.

More information on symptom: Lethargy:

Feeling lethargic: Related Medical Topics

Research related medical symptoms or conditions such as:


By using this site you agree to our Terms of Use. Information provided on this site is for informational purposes only; it is not intended as a substitute for advice from your own medical team. The information on this site is not to be used for diagnosing or treating any health concerns you may have - please contact your physician or health care professional for all your medical needs. Please see our Terms of Use.

Home | Symptoms | Diseases | Diagnosis | Videos | Tools | Forum | About Us | Terms of Use | Privacy Policy | Site Map | Advertise