How long do the symptoms of appendicitis last?

Days: Appendicitis is an acute illness which leads to rupture if not treated within days of it's onset. Once in a blue moon, the body will seal off the rupture, leading to a prolonged low-level infection that can "simmer" for weeks; however, most people have so much pain prior to rupture that they seek out medical attention before this can occur.

Until fixed: Rarely it fixes itself! most will cause one to have an appendectomy. Some perforate and cause a lot of trouble. Their are some few reported with a chronic recurring pattern and later surgery.

Usually: The symptoms are of 24-48 hours of worsening abdominal pain, pain moving into right lower abdomen, nausea sometimes with vomiting ; fever, abdominal pain may get worse with movement or walking.