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. What Are Nausea and Vomiting? Nausea is the feeling you get in your stomach before you vomit. Vomiting is when you throw up your stomach contents through your mouth. Chronic nausea can have several causes from medication to eating choices. Experts explain how you can identify why you're always nauseous, plus the small steps you can take to alleviate it. 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 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. Nausea can happen due to many causes, including motion sickness, food poisoning, and migraines. Sitting quietly and taking ginger or peppermint can help ease nausea. Nausea can be mild, but it can also disrupt your life. Constant nausea is often a symptom of an underlying condition, such as pregnancy or a digestive concern. Motion sickness and drinking alcohol are among the many common causes of nausea and vomiting. Serious diseases can also have this effect. From basic remedies that provide a fast fix to options for long-term relief, here's how to get rid of nausea. Understand the causes of nausea, from food poisoning to migraines, and explore effective at-home treatments. Learn when to see a doctor.