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"Appendicitis is a sudden inflammation of the appendix, a small worm-shaped protrusion located at the beginning of the large intestine, on the lower right side of the abdomen. It most often occurs between the ages of 10 and 30, affecting one in 15 people, and slightly more often in men than in women.\n\nAppendicitis must be treated promptly or the appendix could burst and cause peritonitis, an infection of the peritoneum, the thin wall that surrounds the abdominal cavity and contains the intestines. In some cases, peritonitis requires emergency medical treatment and can be fatal.\n\nCauses\n\nAppendicitis is often the result of a fecal or mucous obstruction. The appendix then becomes swollen with bacteria and deteriorates over the long term.\n\nSymptoms\n\n\nPain usually begins near the navel and gradually progresses to the lower right side of the abdomen\nOver a period of 6 to 12 hours, pain gradually increases, localized halfway between the navel and pubic bone, on the right side of the abdomen.\nCoughing, walking or even breathing can worsen the pain. Pressing on the abdomen and suddenly releasing can also aggravate the pain. \n\n\nPain is often accompanied by the following symptoms:\n\n\nNausea or vomiting\nLoss of appetite\nLow fever\nConstipation, diarrhea or gas\nBloating or rigidity of the abdomen\n\n\nTreatment for acute appendicitis\n\nAcute appendicitis can lead to serious complications, such as a ruptured appendix and a peritoneal infection (peritonitis). Surgical removal of the appendix  (appendectomy) is the most effective way to treat acute appendicitis. An appendectomy can be performed through a large abdominal incision (laparotomy) or through smaller incisions (laparoscopy) that allow the insertion of a small video camera and surgical instruments. Antibiotics are often administered before and after surgery. Recovery after an appendectomy usually takes only a few days. Certain medical centres (mainly in Europe) tend to treat simple appendicitis cases with antibiotics alone. This treatment avoids the need for immediate surgery, but when the appendix is left in place, there is a risk of reinfection."
<https://www.biron.com/en/education-center/neat-little-guide/digestive-disorders/>