Dehydration in medical terms refers to a state where the body has lost more fluid than it has taken in, resulting in a decrease in overall body fluid volume. This fluid loss can disrupt various bodily functions and electrolyte balance.
There are three main types of dehydration:
- Hypotonic dehydration: Occurs when the loss of electrolytes (like sodium) exceeds the loss of water, leading to a lower concentration of electrolytes in the blood.
- Hypertonic dehydration: Occurs when water loss exceeds electrolyte loss, leading to a higher concentration of electrolytes in the blood.
- Isotonic dehydration: Occurs when the loss of water and electrolytes is proportionate, maintaining the electrolyte balance in the blood.
Dehydration can be caused by various factors, including excessive sweating, diarrhea, vomiting, inadequate fluid intake, and certain medical conditions. Symptoms of dehydration can range from mild (thirst, dry mouth) to severe (dizziness, confusion, rapid heartbeat).