• Constipation and inability to pass gas, possibly alternating with diarrhea
• Low fever (below 102°F). A high fever (possibly accompanied by chills) may indicate an abscessed appendix
• Rapid heartbeat
• Abdominal swelling (in late stages)
• Abrupt cessation of abdominal pain after other symptoms occur, indicating the appendix has burst—an emergency
• Nausea and vomiting (in some cases)
• Loss of appetite
• Coated tongue and bad breath
• Painful and/or frequent urination
• Blood in the urine
• Abdominal swelling or bloating, especially in infants