The difference between breast nodule and breast fibroadenoma lies in the cause, nature and symptoms. 1. Pathogenesis: the etiology of breast nodules is not clear, commonly found in breast hyperplasia, breast fibroadenoma, breast cancer and other diseases, is a general term for a class of diseases. The etiology of breast fibroadenoma is mainly due to the abnormal increase in the sensitivity of fibroblasts to estrogen in the breast lobules, – which may be related to endocrine disorders, genetic variations and so on. 2. Nature: Breast nodules can be benign or malignant, and patients need to undergo mammogram and biopsy to make it clear. Breast fibroadenoma is generally benign. 3. Symptoms: Patients with breast nodules have different symptoms depending on the cause of the disease. Patients often have symptoms such as breast lumps, pain and breast overflow. Breast fibroadenoma is mainly a painless lump in the breast and usually has no other obvious self-conscious symptoms. It is recommended that patients should consult a doctor for examination and clarification when there is discomfort in the breast, and standardized treatment should be carried out under the guidance of the doctor.