What Causes Chronic Nausea Without Vomiting?
Medically reviewed by Linda Girgis | MD, Girgis Family Medicine on August 21st, 2026.
Chronic nausea without vomiting can result from numerous underlying conditions affecting your digestive, nervous, or endocrine systems. Gastroparesis, a condition where stomach muscles don't function properly, affects up to 4% of the population and commonly causes persistent nausea. Gastroesophageal reflux disease (GERD) triggers nausea in approximately 60% of patients through stomach acid irritation. Medication side effects, particularly from antidepressants, antibiotics, and pain medications, account for nearly 25% of chronic nausea cases. Hormonal imbalances, including thyroid disorders and diabetes, can disrupt normal digestive function. Anxiety disorders and chronic stress also manifest as persistent nausea through the gut-brain connection. Other causes include food intolerances, vestibular disorders, and certain autoimmune conditions. Keeping a symptom diary can help identify triggers and patterns.
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