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Causes of Chronic Abdominal Pain
Medically reviewed by Qin Rao, MD Abdominal pain is considered chronic if it lasts for more than three months. The pain may be constant or it can come and go over the three-month period or longer.
When you have right side abdominal pain, this is by far the most common suspect, as the pain is in the exact location of your appendix—a tube-like organ attached to the large intestine.