Breast pain may be caused by mastitis, breast nodules, breast hyperplasia and so on. 1. Mastitis: when bacterial infection, breast trauma, autoimmune factors, drug stimulation, etc., will lead to the patient will appear breast pressure will be painful, mostly manifested as red, swollen, hot pain and other symptoms. 2. Breast nodule: If the patient’s breast is infected, damaged, endocrine hormone level disorders, etc., it will lead to cancerous or non-cancerous growth of cells in the breast, which will lead to pain when pressing on the breast. 3. Breast Hyperplasia: This disease is mainly related to endocrine dysfunction, and the patient’s breast will feel painful when pressed, and some patients combined with nipple overflow. At the same time, breast cancer, breast soft tissue contusion, breast ductal dilatation, breast ductal papilloma and other diseases appear breast pain when pressed. It is recommended that patients go to the hospital in a timely manner, under the guidance of the doctor, the relevant examination, according to the patient’s specific examination results, to take the treatment of life should pay attention to balanced nutrition, and regular re-examination.