What are common stimuli that can cause nausea?

Reviewed by Yoshinori Abe, MD

Internal Medicine

Nausea is that uneasy, queasy feeling in your stomach that often makes you feel like you might vomit. Common causes include motion sickness, strong or unpleasant smells, food poisoning, indigestion, pregnancy, migraines, anxiety, or certain medications. When your body detects one of these triggers, your brain releases signals through the nervous system that activate the vomiting center, producing the sensation of nausea.

Because nausea can stem from so many different conditions—some minor, others more serious—identifying the underlying cause is key to finding relief. If you're unsure what's driving your symptoms, take a free, instant, AI-powered symptom check to better understand what may be going on and get personalized guidance on your next steps. It only takes a few minutes and could help you decide whether home care is enough or if it's time to see a doctor.

Reviewed for medical accuracy: 07/15/2026

Important Next Steps

Discover likely causes of common nausea stimuli Learn if nausea needs care today Find out what’s causing your nausea See OTC options for nausea relief Find a doctor for nausea treatment Discover home remedies for nausea relief Understand if nausea signals something serious

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Explanation

Nausea is a feeling that makes you want to vomit. It can happen because of different things happening in your body or around you.

Common Triggers:

Motion Sickness: When you're in a moving car or on a boat, your inner ear sends signals to your brain that can make you feel dizzy and nauseous.
Smells and Tastes: Sometimes, strong or unpleasant smells and tastes can make you feel queasy.
Stomach Issues: If your stomach is upset because of something you ate or an infection, it can make you feel nauseous.
Brain Signals: The brain plays a big role in nausea. When it receives certain signals from your body, it can trigger the feeling of nausea.

These triggers work by sending signals to the brain, which then tells your body that it might need to throw up. If you're experiencing persistent nausea and want to understand what might be causing it, try Ubie's free AI symptom checker to get personalized insights about your symptoms in just a few minutes.

(References)

Lang IM. (1999). Noxious stimulation of emesis. Digestive diseases and sciences, 10490041.
Andrews PL, & Hawthorn J. (1988). The neurophysiology of vomiting. Bailliere's clinical gastroenterology, 3289638.
Yates BJ, Catanzaro MF, Miller DJ, & McCall AA. (2014). Integration of vestibular and emetic gastrointestinal signals .... Experimental brain research, 24736862.

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