Appendicitis is an inflammation of the appendix that requires surgery to remove it. Learn about the types, causes, symptoms, diagnosis, and treatment of acute appendicitis , a medical emergency that can affect anyone. Appendicitis is acute inflammation of the vermiform appendix, typically resulting in abdominal pain, anorexia, and abdominal tenderness. Diagnosis is clinical, often supplemented by CT or ultrasound. Treatment is surgical removal of the appendix. Learn everything you need to know about appendicitis , including its symptoms, causes, diagnosis, treatment options, and recovery tips. Discover how to spot the warning signs early and when to seek medical help. Appendicitis is an inflamed appendix that can cause acute abdominal pain and require surgery. Learn about the signs, causes, diagnosis and complications of appendicitis and how to prevent it.