Most of the breast nodular hyperplasia can be detected by CT scan. The cause of breast nodular hyperplasia may be inflammatory nodules, breast cysts, breast fibroids, breast cancer, etc. In order to clarify the cause of the disease, it is necessary to diagnose breast nodular hyperplasia through the doctor’s visual diagnosis, palpation and CT auxiliary examination and other comprehensive diagnosis of breast nodular hyperplasia. Breast nodule is a common pathological change in the breast. CT scan can see thickening of breast tissue, presenting flaky or lumpy multiple dense shadows, with density slightly higher than that of the surrounding glands, and streak-like low-density shadows can be seen in the thickened tissue. When there is cyst formation, it shows round or oval watery density area with uniform density and no enhancement. Patients with breast nodular hyperplasia, the physician will take into account the patient’s medical history, clinical symptoms to analyze the nature of nodular hyperplasia, the patient should actively cooperate with the physician for treatment.