Nausea

image_nauseaNausea is the sensation of unease and discomfort in the stomach with an urge to vomit.

Causes

Nausea is a symptom of many conditions. It is also an adverse effect of many drugs.
In medicine, nausea is a particular problem during some chemotherapy regimens and following general anaesthesia. Nausea is also a common symptom of pregnancy.
Other causes include: altitude sickness, angina, brain tumor, cirrhosis, clinical depression, coeliac disease, colorectal cancer, crohn's disease, decompression sickness, dehydration, esophagitis, gastroesophageal reflux disease, gastroenteritis, hangover, head injury, hepatitis C, hepatocellular carcinoma, hydrocephalus, hyperthyroidism, hypoglycemia, hyponatremia, hypoxia (medical), intestinal parasite, irritable bowel syndrome, kidney stone, lassa fever, lead poisoning, love sickness, mastocytosis, ménière’s disease, migraine, morning sickness, motion sickness, myocardial infarction, panic attack, peptic ulcer, peritonitis, pneumonia, porphyria, postoperative nausea and vomiting, pseudomembranous colitis, psoriasis, Rocky mountain spotted fever, strep throat, trichinosis, ulcerative colitis, viral infections

Treatment

While short-term nausea and vomiting are generally harmless, they may sometimes indicate a more serious condition, such as Celiac Disease. When associated with prolonged vomiting, it may cause dangerous levels of dehydration and/or electrolyte imbalances.
Symptomatic treatment for nausea and vomiting may include short-term avoidance of solid food. This is usually easy as nausea is nearly always associated with loss of appetite. Dehydration may require rehydration with oral or intravenous electrolyte solutions. Oral rehydration (drinking water) is safer and simpler in most cases.

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