When the breasts are getting bigger and bigger and painful, there are two main considerations: First, when in the growth and development period or physiological period, due to the increase of estrogen level, it can cause breast parenchymal hyperplasia, interstitial edema, resulting in breast enlargement and accompanied by breast swelling and pain, which is a normal physiological phenomenon, and it can be gradually relieved after the onset of menstruation or physiological period. Secondly, when suffering from cystic breast hyperplasia, due to the imbalance of estrogen and progesterone ratio, causing excessive breast hyperplasia, breast enlargement and hyperplastic nodule formation, accompanied by breast swelling and pain, common to both breasts. When the breasts are getting bigger and bigger and painful, you should have a breast ultrasound examination immediately to clarify the cause of the pain, and take relevant medications orally under the guidance of specialists, and have surgery if necessary. In daily life should be light diet, avoid eating too much fried and high-fat food, and avoid staying up late, keep a happy mood.