Pain inside the rib cage below the right chest is most common in the right lung base, liver and gallbladder diseases, as follows: a. When there is inflammation in the right lung base, it can involve the pleura, and the patient will have respiratory and related pain below the right chest, which is manifested as increased chest pain when inhaling and significant relief of chest pain when holding the breath. Second, when acute cholecystitis attacks, pain can also occur under the right chest, and the patient may also have nausea, vomiting, fever and other symptoms. In the case of liver abscess, the patient may also have pain under the right chest, and the patient mostly has high fever and chills, and there is obvious percussion pain in the liver area during physical examination.