A prominent symptom of appendicitis in adults is a sudden pain that begins on the lower right side of the abdomen, or begins around the navel and then shifts to the lower right abdomen, according to the Mayo Clinic. The pain often worsens with jarring movements, coughing or walking.
Additional symptoms of appendicitis in adults include constipation or diarrhea, a low-grade fever that progresses, nausea and vomiting, and abdominal bloating, explains the Mayo Clinic. Some people with appendicitis may also experience a loss of appetite.
The intensity of the pain experienced during appendicitis varies based on the position of the appendix and the patient's age, notes the Mayo Clinic. Pregnant women may experience pain in the upper abdomen because of the appendix being higher during pregnancy to accommodate the fetus. Individuals with symptoms of appendicitis should consult with a medical professional immediately to avoid complications with inflammation or a bacterial infection.
Appendicitis occurs when the lining of the appendix is blocked, and as a result, an infection develops, explains the Mayo Clinic. The bacteria that multiples can cause the appendix to fill with pus, swell and become inflamed. Appendicitis that is not treated can rupture and release toxins into the body.