Swelling of the appendix causing severe pain.

an irritation of the appendix

An infection of the appendix with symptoms such as severe pain in the lower part of the abdomen, nausea, vomiting, and/or fever; surgical removal of the appendix should be done immediately to prevent a potentially fatal bursting of the infected appendix.

An inflammation of the appendix. Patients with appendicitis often present with pain in the right lower abdomen. Pain may be vague at first. Some pain around the umbilicus (perimbilical pain) may also be present in the early stages of the disease. Treatment is involves the removal of the appendix by a surgeon.

inflammation and reddening of the appendix caused by infection, scarring, or blockage.

The Condition"...of the psoas muscle (found in the lower abdomen), fever, rebound tenderness, guarding (voluntary contraction of the abdominal muscle), no history of similar pain, rectal tenderness, anorexia, nausea and vomiting..."

Inflammation of the appendix that requires immediate medical attention.

Inflammation of the appendix , the small worm-like projection from the first part of the colon . Appendicitis usually involves infection of the appendix by bacteria that invade it and infect the wall of the appendix. Appendicitis can progress to produce an abscess (a pocket of pus) and even peritonitis (inflammation of the lining of the abdomen and pelvis). See the entire definition of Appendicitis

Reddening, irritation, inflammation, and pain in the appendix caused by infection, scarring, or blockage.

Infection of the appendix caused by scarring or blockage. Pain is usually in right lower part of the abdomen.

an inflammation of the appendix, a finger-like portion of the large intestine that generally hangs down from the lower right side of the abdomen. Although the appendix does not seem to serve any purpose, it can become diseased and, if untreated, can burst, causing infection and even death.

An inflammation of the appendix, usually caused by a blockage of the opening of the "pouch" and a subsequent infection.

Appendicitis (or epityphlitis) is a condition characterized by inflammation of the appendix. While mild cases may resolve without treatment, most require removal of the inflamed appendix, either by laparotomy or laparoscopy. Untreated, mortality is high, mainly due to peritonitis and shock.Hobler, K., Acute and Suppurative Appendicitis: Disease Duration and its Implications for Quality Improvement, Permanente Medical Journel, volume 2, #2, Spring 1998.