What causes upper abdominal pain and fever, and what should be done?
Upper abdominal pain and fever may be caused by improper diet, excessive alcohol consumption, gastritis, cholecystitis, gastric ulcers, or other reasons. It is recommended to seek medical attention promptly, identify the underlying cause, and receive appropriate treatment accordingly. Specific analyses are as follows:

1. Improper diet: Consuming excessive spicy or greasy foods, such as hot pot or fatty meats, may irritate the gastric mucosa, leading to symptoms such as upper abdominal pain and fever. It is recommended to adjust dietary habits and focus on light, easily digestible foods like millet porridge or pumpkin porridge to avoid further irritation of the gastric mucosa and worsening of symptoms.
2. Excessive alcohol consumption: Alcohol can directly irritate the gastric mucosa. After heavy drinking, individuals may experience upper abdominal pain, nausea, and even a sensation of fever. It is advisable to avoid excessive alcohol intake and rest appropriately afterward to promote recovery.
3. Gastritis: This may be related to factors such as unhygienic eating habits or chronic alcohol abuse, which can lead to acute inflammation of the gastric mucosa, resulting in symptoms including upper abdominal pain, nausea, and fever. Patients are advised to take medications such as compound pepsin capsules, bismuth potassium citrate tablets, or colloidal fruit pectin bismuth capsules as directed by a physician.
4. Cholecystitis: Inflammation of the gallbladder may result from bile stasis or bacterial infection. Common symptoms include right upper quadrant abdominal pain, vomiting, and fever. Patients should follow medical advice and use medications such as clindamycin hydrochloride tablets, ursodeoxycholic acid tablets, or cefixime capsules for treatment.
5. Gastric ulcer: This condition is often associated with Helicobacter pylori infection or long-term use of nonsteroidal anti-inflammatory drugs (NSAIDs), which can damage the gastric mucosa and lead to ulcer formation, causing symptoms such as upper abdominal pain and acid reflux. In severe cases, fever may also occur. Patients are advised to take medications such as esomeprazole magnesium enteric-coated tablets, rabeprazole sodium enteric-coated tablets, or lansoprazole tablets under a doctor’s guidance to improve symptoms.
In daily life, patients are advised to avoid high-fat diets, drink plenty of warm water, and engage in moderate physical exercise such as running or walking, which may help alleviate discomfort.