Breast nodules are very common in female patients and are usually divided into two types: benign and malignant nodules. When a breast nodule is detected, a mammogram, mammogram or MRI is performed and the appropriate imaging grade is assigned to initially assess the nature of the nodule. Breast nodules are graded 4 and 4a, which is how the findings are graded in breast imaging. They are usually found in breast ultrasound examinations, for example, there are three levels further down in breast ultrasound level 4, which are 4a, 4b and 4c. Breast nodule 4a can be interpreted as a breast nodule with a 10%-15% chance of malignancy. The higher the grade of the breast nodule, the greater the chance of malignancy. If the test result is grade 4 or above, it is recommended that surgery or biopsy be performed in a timely manner to clarify the nature of the specific condition and to develop a treatment plan for the condition in a timely manner to avoid further development or deterioration of the breast nodules.