What is Dehydration?

Dehydration occurs when the body doesn’t have enough fluids to function properly. We lose water every day through normal activities such as sweating, breathing, talking, and even sleeping. When that lost fluid isn’t replaced, dehydration develops.

Mild dehydration can cause discomfort and fatigue, but severe dehydration can be dangerous—and in extreme cases, life-threatening.

Common causes of dehydration include:

• Not drinking enough water
• Excessive sweating
• Heat exhaustion
• Diarrhea
• Vomiting
• Intense physical activity
• Certain medical conditions, including diabetes

People at higher risk for dehydration include athletes, older adults, young children, and individuals living or exercising at higher altitudes, where fluid loss can occur more rapidly.

What are the Signs and Symptoms of Dehydration?

Early symptoms of dehydration are often subtle and may include increased thirst, decreased urination, and darker-colored urine. As dehydration worsens, additional symptoms may appear, such as:

• Fatigue
• Headache
• Dry mouth
• Weakness
• Muscle cramps or aches
• Dizziness or lightheadedness
• Nausea
• Dry skin

In severe cases, dehydration can cause fever, confusion, delirium, or loss of consciousness. These symptoms should be treated as a medical emergency, and care should be sought immediately.

Diagnosing and Treating Dehydration

Dehydration is typically diagnosed through a physical exam and discussion of symptoms. Mild to moderate dehydration can often be treated with oral fluids and rest.

In more severe cases, or when symptoms do not improve, IV fluids may be necessary to restore hydration levels safely and quickly. Prompt treatment can help prevent complications such as heat exhaustion or heatstroke.

Four Tips for Preventing Dehydration

While dehydration can be serious, it is often preventable. Follow these tips to stay hydrated, especially during hot weather and outdoor activities:

1. Drink plenty of water: Water is the most effective way to stay hydrated and should be consumed regularly—even before thirst sets in.
2. Stop activity if symptoms appear: Pushing through dehydration can worsen symptoms and increase the risk of heat-related illness.
3. Rest in a cool environment: Move to shade or an air-conditioned space to help regulate body temperature.
4. Cool down the body: Taking a cool shower or bath can help lower body temperature while you work to rehydrate.

We’re Here to Help

If dehydration symptoms don’t improve or become severe, ConvenientMD is here to help. Our experienced providers can evaluate your symptoms and recommend appropriate treatment to help you recover quickly and safely.

Stop into any ConvenientMD location in Maine, New Hampshire, or Massachusetts from 8 a.m. to 8 p.m., seven days a week. No appointment is needed—just walk in.