Breast hyperplasia is a specific disease caused by hormonal imbalances in the body, which stimulate the breast and lead to structural disorders. Breast nodules are not a specific disease; they could be breast hyperplasia or other diseases. Almost all breast diseases can be described as breast nodules, such as breast hyperplasia, breast inflammation, or breast tumors, which can be either benign or malignant. Therefore, breast nodules could be breast hyperplasia or other diseases, and the specific condition needs to be analyzed accordingly.