(1) metastatic right lower abdominal pain. ?

(2) Gastrointestinal symptoms: there may be anorexia, nausea and vomiting, but the degree is mild and the frequency is less. ?

(3) General symptoms: fatigue, increased heart rate, elevated body temperature, etc. ?

2. signs?

(1) Right lower abdomen fixed tenderness: it is the most common and important sign of appendicitis.

(2) Peritoneal irritation: rebound pain, muscle tension, bowel sounds weakened or disappeared. ?

(3) Right lower abdomen mass: a tender mass touching the right lower abdomen, fixed and with unclear boundary. The diagnosis of appendicitis mass or periappendiceal abscess should be considered. ?

(4) Other signs that can be used as auxiliary diagnosis: ① Colon inflation test; ② psoas major test; ③ obturator internal muscle test. ?