嘔吐多爲很多疾患的常見和嚴重的症狀之一;嘔吐能表示疾病的急性期,但它也是慢性病的症狀。鑑別嘔吐的原因,多不太容易。經常在困難的病例中遇到這樣情形,即必須很快地並且很正確地判明; Vomiting is one of the common and serious symptoms of many illnesses; vomiting can indicate the acute phase of the disease, but it is also a symptom of chronic disease. It is not easy to identify the causes of vomiting. Often encountered in difficult cases, that is, they must be quickly and correctly identified;