Although the early symptoms of breast cancer are not obvious and no definite lump can be touched in the breast, there is often local discomfort, especially in post-menopausal women, who sometimes feel mild pain and discomfort in one breast, or sinking and soreness in the back of one shoulder, even involving the upper arm on that side. This is a common symptom of breast cancer. The overflow is usually bloody, and patients should pay special attention if there is plasma blood and go to the hospital for examination as soon as possible. The appearance of the breast gland of breast cancer patients will also change. It can be seen that the skin of the affected lump is elevated, some local skin is orange peel-like, or even edema, discoloration, eczema-like changes, etc. 4. There are still more symptoms of breast cancer. The patient’s nipple is near the center with nipple retraction. The skin of the breast is mildly sunken, the nipple is eroded, the nipple is asymmetrical, or the skin of the breast is thickened and thickened, and the pores are enlarged. 5. In the early stage of breast cancer patients, there is usually no pain, but a lump of bean size, hard and movable, can be palpated in the breast. A few of them have paroxysmal hidden pain, dull pain or stabbing pain.