Breast pain can be caused by physiological factors, breast hyperplasia and breast cancer. 1. Physiological factors: the symptoms of pain in the female breasts and pain when pressed may be due to the fact that women are in the ovulation period, which leads to abnormal hormone secretion in the body, and the higher level of estrogen in the body is caused by the physiological phenomenon. 2. Breast Hyperplasia: Breast Hyperplasia is a relatively common clinical disease, usually caused by abnormal secretion of progesterone and estrogen in the female body. Breast hyperplasia will lead to breast pain, breast lumps and other symptoms, and the pain will be aggravated when the breast is pressed. 3. Breast Cancer: Breast cancer usually has no obvious symptoms in the early stage, with the development of tumor, breast pain, swelling, nipple discharge and other symptoms will appear gradually. The pain will be aggravated when pressing. At the same time, breast pain when pressed may also be seen in mastitis, cystic hyperplasia of the breast, and breast skin diseases. Women who experience breast discomfort should go to the hospital in time for an examination to determine the cause of the problem and then standardize treatment under the guidance of a doctor.