Nausea can have over 700 different potential causes, including infections, food poisoning, pregnancy, and motion sickness. Treatment involves addressing the underlying cause, and some serious conditions like hepatitis require prompt medical attention. Nausea without vomiting may indicate a different condition than nausea with vomiting. Dehydration can occur with prolonged nausea and vomiting.
Nausea can be caused by a wide range of different problems and conditions. It has been estimated that there are more than 700 different potential causes. Some of the more common causes of nausea include infections, food poisoning, pregnancy, and motion sickness. Treating nausea usually involves trying to fix the initial cause as it is often a symptom of another problem rather than a condition by itself. Other potential triggers for nausea include stress and fatigue.
Food poisoning is a common cause of nausea. When nausea is caused by bacteria from contaminated or uncooked food, symptoms can start suddenly. Symptoms usually go away after a day or two, although more severe cases may last longer.
Certain types of medications are known to cause nausea. For example, drugs associated with chemotherapy are a common cause of disease. Pills given to patients after operations under anesthesia also commonly cause a feeling of intense nausea.
Pregnancy is one of the most common causes of nausea. Morning sickness affects most pregnant women and can cause nausea with or without vomiting. While pregnancy often causes nausea in the early hours, it can also cause nausea during the day. Pregnancy can cause nausea around six weeks and is often the first sign of pregnancy.
While in the vast majority of cases of nausea there isn’t a serious problem, there are some serious conditions that can cause it. For example, problems after surgery and hepatitis are known to be common triggers for nausea and need to be treated quickly after diagnosis. For this reason, if a person suffers from nausea for an extended period of time, he should visit a doctor.
Other potential triggers for nausea include motion sickness and infections. Motion sickness occurs when there is no agreement between the movement that a person can visually see and what the body is sensing. This is commonly called travel sickness and can have a number of other effects including dizziness and tiredness.
Sometimes to find out the real cause of the nausea it is necessary to look at other symptoms that may be present. Nausea without vomiting, for example, may indicate a certain type of condition, while nausea with vomiting is more likely to be a problem such as food poisoning. Nausea and vomiting over a long period of time can cause dehydration which is important to avoid.
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