A breast nodule of 10 millimeters is generally not considered large. Breast nodules are generally benign tumors, but the possibility of malignant tumors can not be ruled out. If malignant tumors are suspected, puncture biopsy should be perfected, and corresponding therapeutic measures should be taken after a clear diagnosis. If the nodule is benign, usually, the nodule more than 10-20mm need to be actively treated, so as not to cause pressure on the breast tissue, or malignant transformation. For breast nodules of 10mm, it is usually recommended to follow the doctor’s instructions for regular checkups. Therefore, when you find nodules, you should go to the hospital for relevant examinations to clarify the nature of the nodules, and then diagnose and treat them in time.