Early symptoms of breast cancer; 1, lump symptoms may appear in the early stage of breast cancer: lump is often found in the early stage of breast cancer, and a lump the size of broad bean can be touched in the breast, which is hard and movable. The shape of the mass varies greatly, and it is generally considered that the shape is irregular, the edge is unclear and the texture is hard. Cancerous masses can be promoted in the breast parenchyma at an early stage, but they are not as active as benign tumors. Once they invade fascia or skin, the masses cannot be promoted, and the disease stage is later. 2, nipple discharge: most of them are accompanied by breast masses, and breast cancer with nipple discharge alone is rare. The incidence of nipple discharge during non-pregnancy and lactation is about 3%~8%, which can be colorless, milky white, light yellow, brown, bloody, etc., and can also be water, blood or serous purulent. The amount of nipple discharge can be more or less, and the interval is different, so smear cytological examination should be carried out to make sure. 3, pain: early breast cancer generally has no obvious pain, mostly paroxysmal dull pain, dull pain or tingling. Whether the pain is serious or not until the late stage. 4. Breast skin changes: Through the pictures of early symptoms of breast cancer, we can clearly find that the early skin changes of breast cancer are related to the depth and invasion of the tumor. The lump is small and deep, and the skin is mostly unchanged. The lump is large and shallow, and it adheres to the skin earlier, making the skin appear concave and dimple sign. " If cancer cells block subcutaneous lymphatic vessels and cause skin edema, orange peel degeneration is formed, which is a late manifestation. 5, nipple changes: in the early stage of breast cancer, the nipple is often pulled up, so that the height of the bilateral nipple can be asymmetrical. The nipple invagination is an important sign of cancer in the central area of the breast. It is difficult to pull out the nipple with fingers, and the nipple is in a fixed retraction state. Eczematous carcinoma shows that the nipple is erosive and often crusted; The boundary between lesion area and skin is very clear, and the boundary between lesion area and skin is very clear, and the lesion skin is thick. 6, breast shape changes: normal breast shape is a natural arc, if the arc is abnormal, we should pay attention to whether there is cancer. The symptoms of early breast cancer are manifested in breast shape changes, which are mainly due to the swelling of the skin in the breast, and some local skin is orange peel-like, even edema, discoloration, eczema-like changes and so on.