The pain of breast nodules varies and there are many factors affecting it, the specific reasons are as follows: 1. Breast hyperplasia, not only will there be breast nodules, accompanied by breast pain, related to menstrual period, the symptoms are mild and do not need to be managed, the heavy ones can be treated with medication or surgery. 2. Mastitis, breast inflammation will cause the breast tissue to proliferate into nodules, the inflammation will be painful if it is obvious, you can take anti-inflammatory drugs or physical therapy. 3. Breast lymph nodes, some nodes in the breast may be lymph nodes, lymph nodes are difficult to eliminate, specific treatment means only drugs or surgery, if it does not affect life, you can not deal with it, when the pain is unbearable need to deal with. 4, breast cancer, for cancer disease in the early stage to choose surgery, after surgery need chemotherapy, late stage can only chemotherapy, regular review.