Causes The causes of acute appendicitis in children are still unclear and multifaceted, mainly as a result of the interaction and influence of factors such as appendiceal lumen obstruction, bacterial infection, blood flow disorders and neurological reflexes. The specific causes may be as follows: 1. Bacteria in the intestinal tract invade the appendix due to cold, diarrhea, gastrointestinal tract dysfunction, etc., causing appendicitis; 2. Pediatric upper respiratory tract infections, tonsillitis, etc., cause reactive hypertrophy of the appendiceal wall and obstruction of blood flow, which can also be a cause of appendicitis; 3. The appendiceal cavity is blocked by fecal stones, foreign bodies or parasites, and the contents of the appendiceal cavity are poorly drained and bacteria multiply, which is also This is also a common cause of acute appendicitis; if the appendix cavity is blocked for a long time, it can cause blood circulation disorders in the appendix itself, resulting in tissue ischemia, which can lead to appendiceal necrosis and perforation. Clinical manifestations Clinical manifestations include crying and restlessness, gastrointestinal symptoms and high fever in children that require vigilance. In general, abdominal pain remains the main symptom of pediatric acute appendicitis, but children do not express it and parents and physicians are prone to neglect it. Infants often start with crying and restlessness, sometimes with only pallor and body curling, making them very easy to miss. Gastrointestinal symptoms such as nausea, vomiting, bloating and diarrhea are also easily misdiagnosed as gastroenteritis. High fever can appear earlier, up to 39℃ or more, along with mental atrophy, chills, convulsions and toxic shock. Restricted fixed pressure pain and muscle tension in the right lower abdomen are important signs, but the pressure pain is mostly over the inner part of the wheal point. Abdominal distention and decreased bowel sounds are prominent due to early peritoneal exudation and suppression of gastrointestinal function. All types of acute appendicitis should be treated with early surgery, but conservative treatment can be tried in the following cases: 1. If the onset of the disease is more than three days, the condition is relatively stable, there is a local inflammatory mass, and there is appendiceal abscess formation, appendectomy will be performed three months after the inflammation subsides. 2. Those who have a tendency to limit peritonitis, lower abdominal pressure pain and right lower abdominal inflammatory infiltrate have been reduced. In the course of treatment, if the body temperature rises, the mass grows larger, the abdominal pressure pain increases, and the white blood cells rise significantly, surgical drainage should be considered.