What are the possible causes of left abdominal pain?

Possible causes of left abdominal pain mainly include: 1. Digestive system diseases: such as gastric ulcer (often accompanied by acid reflux, belching, and worsening after eating), colitis (dull pain with mild tenderness and increased bowel sounds), pancreatitis (sudden and severe pain often triggered by overeating or alcohol consumption), etc. 2. Urinary system diseases: such as kidney stones, ureteral stones (often accompanied by hematuria and flank pain), pyelonephritis, etc., with pain possibly related to urination. 3. Reproductive system diseases: in females, conditions such as left adnexitis, ovarian cysts, and ectopic pregnancy should be considered; in males, although less common, prostate-related issues may also be a cause. 4. Other factors: such as gastrointestinal dysfunction, indigestion, acute gastroenteritis, etc., which can also lead to left abdominal pain.