Breast nodules with realistic nodules are usually the result of ultrasound examination, which may be caused by breast fibroadenoma, or caused by lobular hyperplasia of the breast, and may be caused by breast cancer. 1. Breast fibroadenoma: Breast fibroadenoma is a common benign tumor of the female breast, which can lead to ultrasound findings of breast nodules in the form of solid nodules, and patients can often palpate painless lumps. 2. Lobular hyperplasia: Lobular hyperplasia is a kind of breast hyperplasia related to the change of sex hormone level in women’s body, and the patients of this disease will also have the result of realistic nodules under the ultrasound, and the patients can also have the symptom of breast swelling and pain and nipple overflow. 3. Breast cancer: Breast cancer is a kind of malignant tumor in which the ductal epithelium or lobular epithelium of the breast undergoes malignant proliferation. Patients with this disease will also have breast nodules and solid nodules under ultrasound, and the skin of the patient’s breast may also have symptoms such as dimple sign and cellulite-like changes. Also, fibrocystic hyperplasia or sclerosing mastopathy, papillomas, and mastodynia may manifest as solid breast nodules. There are many diseases in which breast nodules manifest as solid, so if you find solid breast nodules on examination, you should seek prompt medical attention, make a clear diagnosis, and be treated under the guidance of your doctor.