The results of breast ultrasound are not the same every time, it is considered to be related to the level of the sonographer or the growth of the breast lesion. 1. The level of breast ultrasound technician: breast ultrasound examination is subjective and directly related to the level of the doctor, due to the different image sections taken by doctors in each hospital, so the measured value may have some differences, usually the largest section is taken for measurement, and the section taken by each doctor is also different. 2. Differences in the growth of breast lesions: Breast diseases such as breast hyperplasia have a certain relationship with the menstrual cycle, breast hyperplasia is more serious before menstruation, breast hyperplasia decreases after menstruation, while breast nodules can increase rapidly in a short period of time, which may lead to different ultrasound test results. When the results of ultrasound tests are different, it is recommended to consult a regular hospital for examination and receive treatment as prescribed by the doctor.