Right-sided rib pain is not necessarily an early sign of cancer. The common clinical causes of right-sided rib pain are pleurisy, costochondritis, and intercostal neuralgia. In a few cases, right rib pain may also be caused by gallbladder infection, gallstones, liver abscess, angina pectoris and other diseases. Of course, right-sided rib pain can also be an early sign of cancer, usually lung cancer, because early stage of lung cancer can lead to right-sided rib pain if it invades adjacent organs, often irregular and vague, which can be aggravated when coughing. The common causes of right sided rib pain are mainly the following: 1. pleurisy: patients may have right sided rib pain, often stabbing or pulling pain, which may be accompanied by chest tightness, coughing, etc., and in severe cases, respiratory difficulty may occur; 2. costochondritis: it mainly manifests as mild enlargement of rib cartilage, accompanied by pain, which is aggravated by coughing, upper limb activity and turning, often swelling, hidden pain, occasionally stabbing pain; 3. intercostal neuralgia 3, intercostal neuralgia: the right side of the patient’s rib cage pain can be band-like, manifested as stabbing or burning pain, aggravated by coughing and deep breathing; 4, other diseases: such as cholecystitis, gallstones, liver abscess, angina pectoris, etc. These diseases can lead to symptoms of right-sided rib cage pain, but usually have their own characteristics, for example, the pain of patients with cholecystitis is mostly colic, accompanied by nausea, vomiting and other symptoms; in the case of gallstones, the pain can also be colic In the case of liver abscess, the pain is often dull, accompanied by fever, chills, loss of appetite and other symptoms; in the case of angina pectoris, the pain is usually crushing or distending, accompanied by chest tightness, difficulty in breathing and other symptoms. There are very many reasons for right rib pain, and in most cases it is not related to cancer. Patients are advised to consult a doctor in time and make a diagnosis through medical examination as well as imaging examination, and then take appropriate treatment measures.