If nausea and vomiting in the toilet is caused by physiological factors such as excessive eating and drinking or unpleasant odor, it is generally normal. If it is caused by acute gastroenteritis and other pathological factors, it is abnormal. At the same time, female patients should also consider whether it is caused by the reaction of pregnancy. 1. Physiological factors: eating too much may be due to the feeling of fullness in the stomach, nausea and vomiting, and may be due to the unpleasant smell of the toilet, nausea and vomiting physiological reaction, generally normal. 2. Pathological factors: due to dietary impurity and other reasons may lead to suffer from acute gastroenteritis and other diseases, at this time the patient will have nausea and vomiting and other symptoms, the patient should seek medical treatment in a timely manner. 3. Female pregnancy: women of childbearing age may experience nausea and vomiting due to elevated chorionic gonadotropin, which is normal. If the symptoms cannot be relieved within a short period of time, it is recommended that the patient seek medical attention to avoid adverse consequences.