Small lumps in the breast can be called nodules, which may be benign lesions such as breast hyperplasia, lymphatic inflammation, etc., but may also be related to breast cancer, and timely consultation is recommended. 1. Breast hyperplasia: for example, due to the imbalance of endocrine hormone secretion in the body, which leads to the hyperplasia of breast gland lobes, thus forming small lumps. 2. Breast Cancer: Most of the breast cancer patients will have small lumps in their breasts due to lymphatic swelling caused by metastasis of breast cancer, which leads to the appearance of small lumps in the breasts. This kind of small lumps is usually hard, inactive at touch, and there is adhesion with the surrounding tissues. 3. Lymph node inflammation: small lumps in the breast may also be lymph node inflammation, because the stimulation of inflammation, resulting in local lymph node reaction caused by adhesions, thus causing small lumps in the breast. The small lumps in the breast should also consider breast inflammation, benign tumors, breast trauma and other causes, it is recommended to consult a doctor in a timely manner, with the help of a doctor to clarify the cause of the disease, and give targeted treatment in a timely manner, so as to avoid delays in the condition.