Patients with pressure pain under the right breast are often caused by the following reasons: first, costal chondritis: below the breast is the rib cage, patients with previous trauma or viral infection, it is easy to induce costal chondritis, you can go to the hospital general surgery, thoracic surgery for clarification. If the disease, you can actively adjust the diet, for example, try not to drink alcoholic beverages, do not eat spicy food, can be appropriate intake of fresh fruits and vegetables, appropriate physical therapy, if necessary, you can also take oral pain medication for treatment. Second, there is a mass in the breast: it may be a benign breast growth or fibroid, but it may also be a malignant mass in the breast, such as breast cancer, so you need to further improve the relevant examination, such as breast ultrasound, mammography, breast MRI, etc., and then give the corresponding treatment according to the results.