Nausea and vomiting

About Nausea and vomiting

Nausea and vomiting are symptoms — not a diagnosis — and can arise from infection, medications, pregnancy, migraine, vestibular disease, GI obstruction, metabolic disturbances, and many other causes. Brief illness in an otherwise healthy adult usually requires only hydration, bland diet, and rest. Concerning features include severe abdominal pain, bloody or bilious vomit, signs of dehydration, persistent symptoms beyond 24–48 hours, or neurologic symptoms. Targeted antiemetics such as ondansetron can help, but evaluation should look for the underlying cause when symptoms persist or recur.