Dehydration
Dehydration is a medical condition that occurs when the body loses more fluids than it takes in, causing an imbalance in the body's water and electrolyte levels. This can happen for a variety of reasons, including not drinking enough water, excessive sweating, vomiting, diarrhea, or certain medical conditions.
Symptoms of Dehydration
- Mild dehydration: symptoms may include:
- Dry mouth and throat
- Fatigue or weakness
- Headache
- Dizziness or lightheadedness
- Dark yellow or brown urine
- Moderate dehydration: symptoms may include:
- Rapid heartbeat
- Low blood pressure
- Sunken eyes
- Decreased urine output
- Decreased sweat production
- Severe dehydration: symptoms may include:
- Extreme thirst
- Confusion or disorientation
- Seizures
- Decreased consciousness
- No urine output
Causes of Dehydration
Dehydration can be caused by a variety of factors, including:
- Not drinking enough water or fluids
- Excessive sweating due to hot weather, exercise, or fever
- Vomiting or diarrhea
- Certain medical conditions, such as diabetes, kidney disease, or heart failure
- Certain medications, such as diuretics or laxatives
Treatments for Dehydration
The treatment for dehydration depends on the severity of the condition and the underlying cause. Mild to moderate dehydration can be treated with:
- Oral rehydration therapy (ORT): drinking fluids that contain water, electrolytes, and sugars, such as sports drinks or oral rehydration solutions like Pedialyte
- Intravenous (IV) fluids: receiving fluids through a vein in the arm, which can help to quickly replenish lost fluids and electrolytes
- Rest and relaxation: getting plenty of rest and avoiding strenuous activities to help the body recover
Severe dehydration may require hospitalization and treatment with:
- IV fluids and electrolytes: receiving large amounts of fluids and electrolytes through a vein in the arm
- Medications: such as anti-nausea medications or medications to help manage underlying medical conditions
- Monitoring: close monitoring of vital signs, urine output, and other health indicators to ensure that the body is recovering properly
Prevention of Dehydration
To prevent dehydration, it is essential to:
- Drink plenty of water: aim to drink at least eight glasses of water per day
- Avoid excessive sweating: stay cool in hot weather, take regular breaks during exercise, and avoid strenuous activities in extreme heat
- Monitor urine output: if urine is dark yellow or brown, it may be a sign of dehydration
- Avoid certain medications: such as diuretics or laxatives, which can increase the risk of dehydration
Frequently Asked Questions (FAQs)
What is dehydration?
Dehydration is a condition where the body loses more fluids than it takes in.
What are the common causes of dehydration?
Common causes include diarrhea, vomiting, fever, excessive sweating, and not drinking enough water.
What are the symptoms of dehydration?
Symptoms may include dry mouth, dark urine, fatigue, headache, and dizziness.
Who is most at risk for dehydration?
Older adults, young children, and people with certain medical conditions are at higher risk.
How is dehydration diagnosed?
Diagnosis is typically based on physical examination, medical history, and laboratory tests such as urine specific gravity.
What is the treatment for mild dehydration?
Treatment usually involves drinking plenty of fluids, such as water or oral rehydration solutions.
Can dehydration be prevented?
Yes, dehydration can be prevented by drinking enough fluids, especially in hot weather or during illness.
What are the complications of severe dehydration?
Complications may include kidney damage, heat stroke, and even death if left untreated.
How long does it usually take to recover from dehydration?
Recovery time varies depending on the severity of dehydration and individual factors.
When should I seek medical attention for dehydration?
Seek medical attention if symptoms are severe, last longer than expected, or if you have underlying medical conditions.
Article last updated on: 18th October 2025.
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