What causes the symptoms of appendicitis?

The symptoms of appendicitis are mainly caused by the following factors: 1. Appendiceal lumen obstruction: Blockage of the appendiceal lumen by fecal masses, stones, foreign bodies, tumors, etc., leads to increased intraluminal pressure. Continuous mucus secretion by the appendix results in impaired blood flow and inflammation. 2. Bacterial invasion: On the basis of appendiceal lumen obstruction, bacteria proliferate rapidly and secrete toxins, damaging the appendiceal mucosa. Bacteria further invade the muscular layer of the appendix, causing worsening inflammation. 3. Congenital appendiceal abnormalities: Such as an excessively long appendix, torsion, or narrow lumen, which increase the risk of lumen obstruction and inflammation. 4. Other factors: Poor lifestyle habits (e.g., chronic lack of sleep, irregular diet), colds, decreased immunity, and other factors may also trigger appendicitis or exacerbate its symptoms.