Clinical manifestations of liver abscess include irregular, purulent fever, especially noticeable in bacterial liver abscesses. The fever is irregular and typically high, preceded by chills, followed by persistent pain in the liver area, which worsens with deep breaths or movement. Depending on the location of the abscess, it can lead to corresponding respiratory and abdominal symptoms, often with a history of diarrhea. If the abscess ruptures, it can evolve into purulent peritonitis with pyothorax. Special signs include liver enlargement, and in the intercostal space corresponding to the abscess, there's localized edema and clear tenderness. Some patients may exhibit jaundice. If the abscess breaks into the chest cavity, lung abscesses can occur, or if it perforates into the abdominal cavity, peritonitis may develop.