The presence of a hard lump in the breast most likely requires consideration of the presence of a substantial lump in the breast, but of course, it can also be mistaken for a hard lump when an incorrect approach is used when performing a breast self-examination. 1, after the appearance of hard lumps in the breast, the most common is some benign or malignant lumpy disease in the breast. The most common benign breast lumps are mammary fibroids, the hard lumps caused by this disease, generally touching can slide under the skin of the breast, move, relatively smooth, touching will not have obvious pain, you can clearly touch the outline of the hard lumps. Some women also have more severe cystic hyperplasia of the breast, and some of these hyperplastic tissues can be tumorigenic and can appear hard lump-like when touched. There is another serious malignant disease that you should be aware of, breast cancer can occur not only in women, but also in men. Sometimes, due to the infiltrative growth of the tumor, the surface of the breast may appear as uneven as an orange peel. In addition, there are also some inflammatory breast lumps, which are not red or swollen at the initial onset, with tough and hard texture and poor mobility, and are easily confused with breast cancer, which need to be differentiated by specialists and pathological puncture if necessary to make a clear diagnosis. 2. Some people have no problems with their breasts, but they use their hands to grasp and pinch them when touching them, instead of palpating them with four fingers together, resulting in a hard mass of tissue being grasped and pinched. This type of false positive lump due to improper palpation is also common. When a hard lump appears in the breast, it must first be examined by a professional physician to roughly determine the shape, texture and mobility of the lump, and then perform the necessary examination items to clarify exactly what the disease is.