In female patients, pain over the right side of the chest can be caused by the following diseases: First, diseases that occur purely in the chest wall, costochondritis is more common, especially in young people, and is also a self-limiting disease, which is mainly treated conservatively with oral analgesic drugs such as Nimesulide dispersible tablets or local closed injection therapy. Secondly, some patients have local pain caused by breast enlargement, which may also be accompanied by chest tightness or palpitations. It occurs more often in middle-aged and elderly patients and is associated with degenerative changes in the mammary glands. Thirdly, some patients are suffering from diseases occurring in the chest and lung tissues, and the common ones are tumors originating from lung tissues, with malignant tumors being the most common. If the condition allows, surgery should be actively chosen.