Boredom under the rib cage may be caused by the following reasons: 1, aseptic inflammation of the cartilage under the rib cage, usually in addition to the symptoms of boredom, there will also be localized pain, and the pain is more pronounced when pressed, thoracic activities, such as turning over, forceful lifting, deep breathing, coughing and other actions when the localized symptoms will appear or aggravate; 2, vegetative nerve disorders, commonly found in menopausal women around the age of 50 years old, in addition to the localized boredom, but also accompanied by panic, palpitations, insomnia, anxiety, dreaming, sweating, etc. 3, if it is the right side of the rib cage boredom, it could be a disease of the liver or the bile ducts.