Small particles inside the breast may be breast hyperplasia or small fibroadenomas inside the breast, so it is recommended that the patient can combine physical examination, breast ultrasound, mammogram, in addition to the patient’s clinical symptoms, basically it can be diagnosed as follows: 1, breast hyperplasia: the number of small particles is usually more, in addition, the patient’s mammary glands will appear periodic pain, for example, before menstruation, there will be local swelling, stinging pain, pins and needles pain, etc. After menstruation, the pain usually disappears. Pain, for example, before menstruation, there will be localized swelling, stinging pain, pinching pain, etc., after the end of menstruation, the pain usually disappears, and the diagnosis can be made clearly by doing ultrasound examination of the breast. 2, benign lesions: if it is a small benign lesion of the breast, such as fibroadenoma, which is also manifested by small particles, the ultrasonography examination can find that the boundary of the lump is clear, and the mobility is very good, so the patient is recommended to observe it regularly. It is recommended that the patient should have regular observation, and the breast ultrasound should be rechecked once every six months.