The causes of breast swelling and pain are determined according to the patient’s situation, the reasons are: 1, adolescent breast swelling and pain, girls adolescent breast development in the body hormone imbalance, breast swelling and pain is normal, serious can take painkillers, boys will also appear, do not worry too much. 2, pregnancy, lactation women, the second development of the common saying, pregnancy, lactation period special, hormone level imbalance caused by, after the lactation period will 3, physiological women, is the common lobular hyperplasia of the breast, female patients are common, with the physiological period is very much related, the lighter self-recovery, the emergence of nodules, unbearable pain requires treatment, taking prolotherapy. 4, older patients, regardless of women and men may appear breast malignant diseases, such as breast cancer, breast pain, lumps, lump adhesions, cellulite-like changes and even nipple yellow or blood-colored exudate fluid.