Nausea and vomiting

Nausea and vomiting are common clinical symptoms. Nausea is often a precursor to vomiting and can also occur alone. It shows special discomfort in the upper abdomen, often accompanied by dizziness, salivation, slow pulse, and decreased blood pressure. Vomiting refers to a complex reflex action of the stomach contents or a part of the small intestine contents flowing out of the mouth through the esophagus. Vomiting can discharge harmful substances from the stomach and protect people, but long-term and severe vomiting can cause technical water, electrolyte disturbances, metabolic alkalosis and malnutrition, and even esophageal and gastric cardia mucosa tears can occur Syndrome) complications.