Dehydration is a common condition, especially during the hot summer months. However, severe dehydration can result in life-threatening consequences if not addressed immediately.

Knowing the telltale signs of severe dehydration can help you take the necessary steps to stay hydrated and avoid complications.

1. Dark-colored urine

One of the most apparent signs of severe dehydration is dark, concentrated urine. This is a result of your kidneys trying to conserve fluid by excreting less water.

Dark urine can range from amber to brown in color and is usually accompanied by a strong odor. If you notice a significant change in the color or smell of your urine, it’s essential to rehydrate immediately.

2. Dry, sticky mouth

Dehydration affects the salivary glands, causing a dry and sticky feeling in the mouth. If left untreated, this can lead to bad breath and an increased risk of tooth decay and gum disease.

Drinking water can help to alleviate dryness in the mouth and promote hydration.

3. Fatigue and weakness

Dehydration can cause fatigue and weakness due to a decrease in blood volume and oxygen flow to the muscles. It can also result in an electrolyte imbalance, which is necessary for proper muscle function.

If you experience tiredness or weakness with no obvious explanation, it could be a symptom of severe dehydration.

4. Dizziness or lightheadedness

When you are dehydrated, your blood pressure drops, resulting in dizziness or lightheadedness. This is because the body tries to conserve fluid by reducing blood flow to the limbs and diverting it to vital organs.

If you experience these symptoms, it’s crucial to immediately rehydrate and avoid activities that require balance and concentration.

5. Rapid heartbeat

Dehydration can cause the heart to work harder to pump blood due to a decrease in blood volume. This can result in a rapid heartbeat or palpitations.

If you notice an irregular heartbeat or a racing pulse, it’s essential to rehydrate and seek medical attention if necessary.

6. Sunken eyes

Severe dehydration can cause the eyes to appear sunken and dull. This is due to a lack of hydration, which can cause the tissues around the eyes to shrink. Sunken eyes may also be accompanied by dark circles, and in some cases, vision changes.

7. Confusion or irritability

Dehydration can cause confusion, irritability, and mood changes due to a decrease in blood flow and oxygen to the brain. It can also result in an electrolyte imbalance, which is necessary for proper brain function.

If you or someone you know experiences confusion or irritability, it could be a symptom of severe dehydration.