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What causes dizziness and dry mouth? 2 possible conditions

See a list of possible causes in order from the most common to the least.



This condition is considered a medical emergency. Urgent care may be required.

Dehydration occurs when you lose more fluid than you drink. The most common cause of water loss from the body is excessive sweating. Headaches, dizziness, and decreased urination are symptoms.

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Hyperventilation happens when you suddenly start breathing very quickly. Exhaling more than you inhale causes low carbon dioxide levels, which leads to lightheadedness and tingling in the fingers.

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Please consult a healthcare professional if you have health concerns.