Thirst: Symptoms & Signs

Thirst is the feeling of needing to drink something. It occurs whenever the body is dehydrated for any reason. Any condition that can result in a loss of body water can lead to thirst or excessive thirst. For this reason, thirst is a characteristic symptoms of certain medical conditions, most notably diabetes mellitus. Thirst may be accompanied by other signs of dehydration such as decreased urine output, reduced sweating and tear production, muscle cramps, weakness, lightheadedness, and nausea. Dehydration and thirst may be minor or severe, depending upon the amount of water lost by the body. Polydipsia is the medical term that refers to increased or excessive thirst.

Related Symptoms & Signs

Other causes of thirst

  • Hot Climate
  • Inadequate Intake of Fluids
  • Liver Failure
  • Medications
  • Psychogenic Polydipsia
  • Severe Bleeding
  • Spicy or Salty Foods

Next Article

SLIDESHOW

The 14 Most Common Causes of Fatigue See Slideshow

Subscribe to MedicineNet's General Health Newsletter

By clicking Submit, I agree to the MedicineNet's Terms & Conditions & Privacy Policy and understand that I may opt out of MedicineNet's subscriptions at any time.

Medically Reviewed on 9/10/2019
References
Kasper, D.L., et al., eds. Harrison's Principles of Internal Medicine, 19th Ed. United States: McGraw-Hill Education, 2015.
CONTINUE SCROLLING FOR RELATED SLIDESHOW