Right subcostal internal pain may be caused by trauma, intercostal neuralgia and costochondritis. 1. Trauma: due to localized contusion or rib fracture caused by trauma, patients may have hidden pain in the right side of the internal subcostal pain, and the pain will be aggravated when taking a deep breath, and the local skin can be seen as bruising or broken symptoms. 2. Intercostal neuralgia: Intercostal neuralgia is caused by thoracic spine lesions, viral infections, etc. When the lesion involves the right intercostal nerve, it may be manifested as hidden pain in the right subcostal area, and the pain will be aggravated when coughing or deep breathing. 3. Costal chondritis: the right side of the rib cartilage may be infected due to trauma or chronic strain. The patient may have the symptom of hidden pain in the right side of the subcostal area, and there will be obvious pain when pressing. Hidden pain in the right side of the rib cage may also be cholecystitis, gallbladder stones and other diseases, it is recommended to go to the hospital in time for further examination, to clarify the cause of the disease and then carry out standardized treatment.