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11. When to See a Doctor

For most people, norovirus clears up on its own within a few days. But dehydration is a serious risk—especially for infants, young kids, older adults, or anyone with a weakened immune system.

Signs of dehydration include dry mouth, dizziness, dark urine, or going long stretches without needing to pee. Babies may cry without tears or stop having wet diapers. If symptoms stick around or these warning signs show up, it’s time to call a doctor.

A young girl sits on an exam table holding a stuffed bunny while a doctor examines her throat with a tongue depressor. Most norovirus cases clear up quickly, but if dehydration symptoms appear—like dry mouth or no tears in babies—it’s time to see a doctor.
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This site offers information designed for educational purposes only. You should not rely on any information on this site as a substitute for professional medical advice, diagnosis, treatment, or as a substitute for, professional counseling care, advice, diagnosis, or treatment. If you have any concerns or questions about your health, you should always consult with a physician or other healthcare professional.