Various reasons exist for right rib pain on pressure, such as lung disease, chest wall disease, liver and gallbladder disease. 1. Lung diseases: if there is infection or tuberculosis in the lungs, rib pain may be involved. 2. Chest wall diseases: diseases such as costochondritis, intercostal muscle strain, rib fracture, etc. will cause pain when pressing on the ribs. 3. Liver and gallbladder diseases: the right lower side of the rib cage is close to the liver and gallbladder, if there is a lesion in the liver or gallbladder, pressure on the rib cage will produce pain, which is not caused by the rib cage. There may be other reasons for the right side rib pain, it is recommended to go to the regular hospital for examination and treatment under the premise of clarifying the cause of the disease.