Appendicitis
Appendicitis is when the appendix is swollen (inflamed). The inflammation can lead to developing a hole (perforation) and a collection of pus (abscess).
CAUSES
There is not always an obvious cause of appendicitis. Sometimes it is caused by an obstruction in the appendix. The obstruction can be caused by:
A small, hard, pea-sized ball of stool (fecalith).
Enlarged lymph glands in the appendix.
SYMPTOMS
Pain around your belly button (navel) that moves toward your lower right belly (abdomen). The pain can become more severe and sharp as time passes.
Tenderness in the lower right abdomen. Pain gets worse if you cough or make a sudden movement.
Feeling sick to your stomach (nauseous).
Throwing up (vomiting).
Loss of appetite.
Fever.
Constipation.
Diarrhea.
Generally not feeling well.