What are the symptoms of dehydration?

The symptoms of dehydration can vary depending on the severity and duration of dehydration. However, the most common symptoms of dehydration include:

  • Dry mouth or feeling thirsty
  • Decrease in urine volume or darkening
  • Dry skin or mouth
  • Headache or dizziness
  • Weakness or fatigue
  • Anorexia
  • Don't get tired easily
  • Difficulty concentrating or memory problems
  • Rapid pulse or irregular heartbeat
  • Drop in blood pressure
  • Muscle cramps or cramp-like pains

These symptoms are early signs of dehydration and can cause dehydration to worsen if left untreated.

Sources:

Mayo Clinic. (2021). Dehydration. https://www.mayoclinic.org/diseases-conditions/dehydration/symptoms-causes/syc-20354086

Centers for Disease Control and Prevention. (2020). Dehydration. https://www.cdc.gov/nutrition/InfantandToddlerNutrition/dehydration.html

National Health Service. (2019). Dehydration. https://www.nhs.uk/conditions/dehydration/

American Heart Association. (2017). Dehydration and Heat Stroke. https://www.heart.org/en/health-topics/dehydration-and-heat-stroke