Symptoms of appendicitis in men vary according to acute and chronic appendicitis. Acute appendicitis manifests itself as abdominal pain, nausea, fever, etc., while chronic appendicitis manifests itself as abdominal pain and constipation. 1. Acute appendicitis (1) Abdominal pain: the typical manifestation is metastatic right lower abdominal pain, i.e. abdominal pain initially occurs in the epigastric region or umbilical region and lasts for several hours. When it spreads to the local peritoneal surface, the pain is transformed into somatic pain, which occurs in the right lower abdomen, and the degree is aggravated. (2) Gastrointestinal symptoms: often accompanied by nausea, vomiting and other gastrointestinal discomfort. (3) Systemic symptoms: there may be fatigue and headache in the early stage, and suppurative appendicitis is often accompanied by chills and high fever. Jaundice may appear if complicated by portal phlebitis. 2.Chronic appendicitis (1) Abdominal pain: irregular diet, strenuous activities can induce abdominal pain, often chronic right lower abdominal pain. (2) Gastrointestinal dysfunction: constipation, increased frequency of defecation, lack of appetite, etc. When the above symptoms occur, you should go to the hospital in time, and standardize the treatment under the doctor’s guidance.