Right rib pain is associated with a variety of causes, the most alarming of which are benign lesions, such as intercostal neuritis, pneumonia and pleurisy. Secondly, there are various kinds of tumor lesions, such as lung cancer, liver cancer, ascending colon cancer and bone metastases. 1. Benign lesions (1) Intercostal neuritis: Intercostal neuritis is related to nerve damage and causes localized swelling and discomfort. (2) Pneumonia: Pneumonia can irritate the pleura and cause related symptoms. (3) Pleurisy: Inflammation of the pleura caused by various reasons can also lead to stimulation of the peripheral nerves and cause related symptoms. 2. Tumor lesions (1) Lung cancer: lung cancer is the most common malignant tumor in the lungs, which will invade the surrounding tissues and cause related symptoms after invading the pleura. (2) Hepatocellular carcinoma: Hepatocellular carcinoma will cause symptoms when it invades and destroys the surrounding tissues as the lesion increases in size. (3) Ascending colon cancer: mainly refers to malignant tumors occurring in the hepatic flexure of colon, which will cause related symptoms as the tumor invades and destroys the surrounding tissues. (4) Bone metastasis tumor: bone metastasis tumor in ribs causes bone destruction, which will directly lead to related symptoms. Once there is persistent swelling and pain in the right rib, it is necessary to consult a doctor in time for observation, and carry out standardized treatment under the guidance of clinicians after diagnosing the condition.