Most breast nodules are not associated with pain, and the absence of pain may be normal. Breast nodules are a collective term for solid swellings in the breast. Breast nodules are also a symptom of breast hyperplasia as well as breast neoplastic diseases, including benign breast tumors such as mammary fibromas and maple tumors and malignant breast tumors such as breast cancer. For patients with breast nodules, not all nodules cause pain. Some breast nodules can exist asymptomatically. This is because simple breast nodules, which are usually benign lesions and small, do not irritate the breast locally and cause painful symptoms. Patients with breast nodules should go to a regular hospital in time and take targeted treatment under the guidance of a professional doctor.