Rib pain below the breast may include the following aspects: 1, the local impact of breast hyperplasia, breast hyperplasia pain may affect the surrounding, pain and menstrual cycle has a direct relationship, the patient can be based on the history of judgment, if necessary, go to the hospital for breast ultrasound. 2, due to the impact of costochondritis, which is a kind of aseptic inflammation, and the local stimulation has a direct relationship with the inflammation of the intercostal nerve may cause this pain, local closed treatment is more effective. 3, local inflammatory reaction, such as sebaceous cyst infection. Inflammation stimulation to the intercostal nerve may cause this pain, local closed treatment is more effective.3, local inflammatory reaction, such as sebaceous cyst infection.4, due to chest inflammation stimulation to the pleura caused by the reaction, this situation is easy to ignore.5, due to the impact of abdominal diseases, such as diseases of the hepatic and biliary system, cholecystitis, etc. will stimulate the local cause pain.6, due to the impact of abdominal diseases, such as liver and gallbladder system diseases, cholecystitis, etc. will stimulate the local cause pain.