Understand the causes of nausea, from food poisoning to migraines, and explore effective at-home treatments. Learn when to see a doctor. What is nausea? Nausea is the feeling that you need to vomit (throw up). It can happen for dozens — if not hundreds — of reasons. Whether you vomit depends on factors like how strong your feeling of nausea is and what caused it. And it’s common for people to experience nausea with no other symptoms and without ever vomiting. Nausea is a symptom characterized by pronounced stomach discomfort and the sensation of wanting to vomit. Learn about the causes of nausea and how it’s treated. Nausea and vomiting are common signs and symptoms that can be caused by numerous conditions. Nausea and vomiting most often are due to viral gastroenteritis — often called stomach flu — or the morning sickness of early pregnancy. What is nausea? Nausea is a general term describing a queasy stomach, with or without the feeling that you are about to vomit. Almost everyone experiences nausea at some time, making it one of the most common problems in medicine. Nausea is not a disease, but a symptom of many different disorders. Nausea is a common symptom with multiple causes, such as dietary choices, migraines, and medication side effects. Recognizing these can guide you to effective remedies and when to seek medical help. From basic remedies that provide a fast fix to options for long-term relief, here's how to get rid of nausea. Learn about nausea and vomiting, including common causes, symptoms, medical or home treatments, and strategies for prevention and relief. Nausea is a diffuse sensation of unease and discomfort, sometimes perceived as an urge to vomit. [1] It can be a debilitating symptom if prolonged and has been described as placing discomfort on the chest, abdomen, or back of the throat. This article reviews what nausea feels like, when to consult a healthcare professional, possible causes, treatment, and prevention.