What Are the Causes of Nausea and Vomiting?

Nausea and vomiting are common clinical symptoms. For instance, some women of childbearing age may experience vomiting during early pregnancy—a physiological phenomenon. However, nausea and vomiting can also result from various underlying medical conditions, significantly impacting patients’ daily lives. Therefore, it is essential to pay attention to these symptoms. Generally, nausea and vomiting arise from the following causes:

First, indigestion—a well-recognized gastrointestinal disorder—can cause nausea, vomiting, abdominal distension, and loss of appetite. Patients should receive timely and effective pharmacological treatment to enhance digestive function and improve gastrointestinal motility, thereby alleviating nausea and vomiting. Second, consumption of unhygienic food can irritate and damage the gastric mucosa, triggering nausea and vomiting. Thus, maintaining dietary safety and hygiene is crucial for preserving gastric mucosal health and preventing nausea and vomiting.

Third, gastroesophageal reflux disease (GERD) is another frequently encountered gastrointestinal disorder. Reflux of gastric or duodenal contents into the esophagus can cause esophageal injury. Affected patients may present with nausea, vomiting, abdominal pain, or hoarseness. Fourth, gastritis—characterized by inflammation of the gastric mucosa resulting from irritation or injury—may be classified as either acute or chronic based on disease duration. Both acute and chronic forms of gastritis can provoke nausea and vomiting due to inflammatory stimulation of the gastric mucosa.