What types of cancer can cause nausea?

Cancers that commonly cause nausea include stomach cancer, liver cancer, brain glioma, lung cancer, and ovarian cancer. Nausea often results from tumor invasion affecting organ function, nerve compression, or metabolic disturbances, and should be evaluated based on accompanying symptoms. If persistent unexplained nausea occurs along with weight loss or pain, prompt medical consultation is recommended.

1. Stomach cancer: Tumor invasion of gastric mucosa disrupts digestive function, leading to food retention and nausea. Commonly accompanied by post-meal bloating and stomach pain; some patients may experience hematemesis (vomiting blood) or melena (black stool), and nausea may worsen after eating.

2. Liver cancer: Tumors impair bile secretion, hindering digestion, while pain in the liver area irritates the gastrointestinal tract, causing nausea. Often associated with jaundice (yellowing of the skin), dull pain in the upper right abdomen, and sudden loss of appetite.

3. Brain glioma: Tumors compress intracranial nerves or increase intracranial pressure, directly stimulating the vomiting center and resulting in nausea or even projectile vomiting. Typically accompanied by severe headache and blurred vision, with little correlation between nausea and body position changes.

4. Lung cancer: In advanced stages, metastasis to the gastrointestinal tract can impair digestion, or abnormal hormone secretion may disrupt metabolism, triggering nausea. Commonly accompanied by cough, hemoptysis (coughing up blood), chest tightness, and in some patients, general discomfort worsened by hypoxia (oxygen deficiency).

Ovarian cancer: Advanced tumors may metastasize to the abdominal cavity, compressing the intestines, or secrete hormones that irritate gastrointestinal mucosa, leading to nausea. Frequently accompanied by lower abdominal pain and distension, and abnormal vaginal bleeding, with nausea typically more noticeable after meals.

In daily life, patients should choose soft, easily digestible, warm foods, avoid overly sweet or greasy meals, sip warm water slowly when feeling nauseous to relieve symptoms, maintain good indoor ventilation, and minimize exposure to irritating odors to help reduce discomfort.