Nausea and/or vomiting is a very common clinical symptom. The most common cause of acute nausea and vomiting is gastroenteritis. The most common causes of chronic nausea/vomiting is pregnancy (morning sickness), gastritis and medication. Nausea and vomiting are often accompanied with abdominal pain. This webpage focuses on nausea and/or vomiting without abdominal pain. If you have abdominal pain, please also try our abdominal pain diagnosis tools.
By answering questions about your condition, you can find the causes.