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Symptom Checker

Step 4: Read and complete the decision guide to learn more about your symptoms.

Dry Mouth and Excessive Thirst

Okay. We ask because any of those conditions can cause a sensation of excessive thirst. It's probably because the brain is tricked into thinking the body has too little fluid even though there may actually be too much. Treatment of these conditions may improve your symptoms. Talk to your doctor about this possibility and about treatment options.

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