What are the symptoms of appendicitis?

Appendicitis, or pain in the appendix, typically presents as persistent or intermittent severe pain in the lower right abdomen. Initially, the pain may begin in the upper abdomen or around the navel, and then gradually shifts and localizes to the lower right abdominal area—a process known as "shifting pain to the lower right quadrant." Patients often experience gastrointestinal symptoms such as nausea, vomiting, and loss of appetite. Some individuals may also exhibit systemic signs of infection, such as fever and chills. When the appendix becomes abscessed or perforated, the pain may suddenly intensify and spread throughout the abdomen, accompanied by signs of peritoneal irritation, including abdominal muscle rigidity and rebound tenderness. If appendicitis is suspected, prompt medical attention should be sought to avoid delays in treatment.