Ultrasound can be used for routine breast examinations, and it can be repeated without any damage. Since the breast is a soft tissue, ultrasound is the most direct and simple way to examine breast lumps, cysts, and dilated ducts, and the cost of the examination is relatively low, around$120 at a regular level II hospital. For example, if a lump is considered to be malignant, you can choose to have a mammogram, which is an X-ray examination to determine the specific nature of the tumor by observing the calcification points of the image, and can detect malignant tumors in the breast at an early stage. It can diagnose breast lumps in a more three-dimensional way, so it is necessary to choose the breast examination method according to the specific situation.