Malignant tumor cells have unique characteristics. Cancer cells proliferate rapidly, shed easily, destroy surrounding tissues, and can grow to other sites, leading to recurrence and metastasis. In addition to direct invasion of the surrounding tissues, breast cancer can spread through the lymphatic tract and blood stream. Localized invasion can be seen as tumor enlargement, abnormal ulceration and bleeding of nipple areola and skin, redness and edema. Lymphatic metastasis is most common in breast cancer, and the most common sites of metastasis are axillary lymph nodes and internal breast lymph nodes located in the rib space around the sternum. Tumors usually tend to metastasize to organs with rich blood supply, such as lung, bone, liver, soft tissue, brain, etc. Then what can be done to prevent recurrence of metastasis? Early detection, early diagnosis and early treatment. Regular self-examinations and early screening with the help of imaging such as ultrasound and mammogram. Palpable masses can be diagnosed clearly by needle aspiration biopsy or surgical excisional biopsy. After clear diagnosis, you should get reasonable and individualized comprehensive treatment, paying attention to the first reasonable treatment. Regular review after treatment. The review may be lifelong, and when signs of possible metastasis are found during the follow-up, timely communication with the doctor is needed for active diagnosis and treatment. Strengthen the immunity of your own organism. For example, strengthen nutrition, build up confidence to win, maintain a relaxed mood and exercise properly. Whether breast cancer patients can be cured or not all depends on themselves cancer patients besides the stress caused to patients by the disease itself, other kinds of stress such as excessive control of emotions, loneliness, poor social support system and other disguised stress also destroy the immune function and make cancer cells easily invade the organs. Therefore, patients should learn to regulate their bad emotions, have a correct perception of the disease or even an extraordinary belief of overcoming the disease, learn to seek social support system and participate in social activities appropriately. 1. Patients with cancer should have a firm belief that their immune system can overcome the disease and have the firm belief of living “with confidence in life for 200 years”. In fact, you have more control over your own life than you think, and even such a difficult disease as cancer can be under your control. It can be said that how strong your faith is, how much you will gain, and miracles will happen to you. 2.Love and support from family and friends A good social support system can reduce the intensity of stress brought by the disease and ease the deterioration of bad emotions. Among these loved ones support between husband and wife is the most important. Many cancer patients are very anxious after being diagnosed, so they look for this doctor today and that doctor tomorrow. However, the time and opportunities left for cancer patients are limited, especially for those who have reached advanced stage of cancer, and time is even more precious. 4. Don’t take individual as general and special cases as common cancer patients and their relatives like to hear that those who have taken a certain prescription are cured and how a certain patient is “big-hearted” and later cured by themselves, etc. One by one, ten by hundred, and everyone spreads it widely as if this prescription has cured a hundred people, resulting in many people trying to use these prescriptions. The result is a delay in their own treatment. 5, strengthen the exercise in the major disease exercise to pay attention to the way and the amount of activity size, generally to walk is appropriate, do not do too strenuous exercise, some people say that walking is the best way to exercise I see a point. From the point of view of the amount of exercise, after a night of rest can rest over as appropriate. Exercise will have an appetite, an appetite to eat more, eat more food to improve physical fitness, improve immunity. Loss of appetite, nausea and even vomiting are almost always side effects after chemotherapy, which leads to patients not being able to eat, not being able to keep up with nutrition, and further weakening of the body, forming a vicious circle, which is bound to be one of the causes of death eventually.