A painting from 1681 depicting a person affected by<unk>  and vomiting<unk>  are associated in about fifty percent of people affected by<unk> . This may be as a result of the<unk>  itself, or as an effect of the treatment such as chemotherapy, radiation therapy, or other medication such as opiates used for pain relief. About 70 to 80% of people undergoing chemotherapy experience<unk>  or vomiting.<unk>  and vomiting may also occur in people not receiving treatment, often as a result of the disease involving the gastrointestinal tract, electrolyte imbalance, or as a result of anxiety.<unk>  and vomiting may be experienced as the most unpleasant side effects of cytotoxic drugs and may result in patients delaying or refusing further radiotherapy or chemotherapy. The strategies of management or therapy of<unk>  and vomiting depend on the underlying causes. Medical treatments or conditions associated with a high risk of<unk>  and/or vomiting include chemotherapy, radiotherapy and malignant bowel obstruction. Anticipatory<unk>  and vomiting may also occur.<unk>  and vomiting may lead to further medical conditions and complications including: dehydration, electrolyte imbalance, malnutrition, and a decrease in quality of life.<unk>  may be defined as an unpleasant sensation of the need to vomit. It may be accompanied by symptoms such as salivation, feeling faint, and a fast heart rate. Vomiting is the forceful ejection of stomach contents through the mouth. Although<unk>  and vomiting are closely related, some patients experience one symptom without the other and it may be easier to eliminate vomiting than<unk> . The vomiting reflex (also called emesis) is thought to have evolved in many animal species as a protective mechanism against ingested toxins. In humans, the vomiting response may be preceded by an unpleasant sensation termed<unk> , but<unk>  may also occur without vomiting. The central nervous system is the primary site where a number of emetic stimuli (input) are received, processed and efferent signals (output) are generated as a response and sent to various effector organs or tissues, leading to processes that eventually end in vomiting. The detection of emetic stimuli, the central processing by the brain and the resulting response by organs and tissues that lead to<unk>  and vomiting are referred to as the emetic pathway or emetic arch.
Cancer and nausea
symptoms of Peptic ulcer disease
Diabetes and pregnancy
Old age and driving
symptoms of Gastrointestinal bleeding
symptoms of Pancreatitis
symptoms of Diverticulitis
Cancer signs and symptoms