If you experience breast enlargement and pain, you need to determine the measures to be taken, taking into account the time, period and degree of symptoms. First of all, if you are in the growth and development period, it is normal to experience breast enlargement, pain or swelling, you only need to choose the material of underwear reasonably, wear loose fitting clothes and maintain a good posture. Secondly, if the breast is in a special physiological period, such as before and after the period of vacation, there is a cycle of breast enlargement and pain, or such symptoms during pregnancy, as long as there is no obvious hard lumps inside the breast, it is generally normal, and will naturally recover after the special physiological period has passed, pay attention to the care of the breast during the period. In addition, if the breasts are enlarged for a long time, accompanied by pain, even lumps, abnormal fluid flowing from the nipples and other symptoms, then you need to be alert to breast disease. You should immediately consult a professional doctor at the breast department of a hospital and have a mammogram, mammogram and other related examinations to detect the disease early and treat it as soon as possible.