Breast anechoicity is usually a non-echoic mass in the breast found on a breast ultrasound. Breast nodule without echo may be related to breast hyperplasia, breast fibroma, breast nodule and other causes. 1. Breast hyperplasia: Patients may experience breast pain, nodules or lumps. Breast ultrasound performed when cystic hyperplasia is present may reveal anechoic lumps in the breast. 2. Breast cyst: a round or oval, fluid-filled cystic mass in the breast. When breast ultrasound is performed, a lump in the breast can be detected, which is characterized by anechogenicity of the breast. 3. Breast fibroadenoma: it manifests as a painless lump with smooth surface and clear boundary. When breast ultrasonography is performed, liquefaction may occur in the center of the fast-growing fibroadenoma, and the ultrasonographic manifestation will be no echo in the breast. If the patient’s breast ultrasound shows anechoic breast, he should go to the hospital in time to find out the cause of the disease and be treated under the guidance of the doctor. Usually develop good living habits, insist on going to bed early and getting up early, and keep a calm mind.