Dehydration: Causes of Dehydration


is a critical and essential element of the body. It forms the basis for all our body fluids, including digestive juices and blood. It also aids in absorption and transportation of nutrients. Also, it helps in elimination of wastes. Hence, proper hydration is necessary to allow the body to function. But, dehydration can have severe consequences. Read on to know more about the causes of dehydration.


occurs when the amount of water consumed or taken in is lesser than the amount of water leaving the body. Serious consequences have to be faced, if the lost fluids are not replenished. A person has to drink a specified amount of water to make up for this loss of water. The loss in water occurs when we:

  • Urinate or have a bowel movement; this eliminates waste by-products from the body
  • Sweat to lower the body temperature
  • Breathe and humidified air goes out

Causes of Dehydration

Everyday, an average adult loses more than

2.5 liters

of water by simply eliminating waste, breathing and sweating. In the process, you also lose electrolytes such as calcium, potassium and sodium. These minerals maintain the body fluids. Some other causes of dehydration are given below:

Vomiting, Diarrhea:

Acute, severe diarrhea may cause a huge amount of water and electrolyte loss in a very short time. If diarrhea is accompanied by vomiting, then even more minerals and fluids are lost.

Especially, infants and children are at a higher risk. Worldwide, this is the main cause of death in children. Every year in the U.S.,

up to 300 children die because of dehydration.



Mostly, you tend to become more dehydrated as your fever rises. You tend to lose even more fluids if you are experiencing vomiting and diarrhea.

Excessive Sweating:

You can become dehydrated if you exercise vigorously. Even hot, humid weather can increase the amount you sweat.

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