Appendix is a small tube of tissue attached to the large intestine. Appendicitis occurs when appendix becomes inflamed due to blockage caused by stool, a foreign object, infection or cancer. Below is the list of the common appendicitis symptoms a person may experience.1. The first and the most common sign of appendicitis is abdominal pain which starts as a dull ache around the belly button. As the inflammation travels to the outer layer of the appendix, the peritoneum, the pain will become sharp and can be clearly felt in the lower right area of the abdomen. The area in the lower right of the abdomen will be tender when pressure is applied. The pain will be worse if the person coughs or walks. If the person feels pain around the whole abdomen, it can be a sign of a ruptured appendix.2. The