If you suspect your appendix has burst, it is important to seek medical attention immediately. Symptoms of a burst appendix include sudden, severe abdominal pain, nausea, vomiting, constipation, and fever. More serious symptoms may include rapid heart rate, low blood pressure, and abdominal swelling. If any of these symptoms are present, it is important to seek medical attention as soon as possible. A doctor may use imaging tests such as CT scans or ultrasounds to determine if your appendix has indeed burst. Treatment may involve antibiotics and surgery.