The main methods of breast examination include visual inspection and palpation. The visual inspection is also known as the diagnosis of the eyes, and it is necessary to observe the symmetry of both breasts, whether the nipples are in one plane and whether there is inversion of the nipples, and whether there is fluid on the surface of the nipples. or eczema-like changes. In the case of inflammatory breast cancer, there are obvious changes of breast engorgement and edema. In addition, palpation is usually performed in a clockwise direction starting from the upper outer quadrant, and the tenderness of the breast gland and whether there is an occupying lesion in the breast gland should be sensed, and the size, location, distance from the nipple, and texture of the lesion should be described.