For patients with early-stage breast cancer, it depends mainly on whether the appropriate treatment is taken in time. Generally speaking, the most effective treatment for early stage breast cancer is surgical excision when the cancer is small and has not spread and metastasized. Breast-conserving surgery is an important way of surgical treatment for early-stage breast cancer, and conventional radiation therapy after breast-conserving surgery is more effective, and the 5-year survival rate of breast cancer patients after surgical resection is over 60%. If the breast cancer is in advanced stage, patients are usually unable to undergo surgical removal and can only be treated by clinical methods such as chemotherapy, radiotherapy and biotherapy. Although chemotherapy can reduce the size of the cancer to a certain extent, it can also increase toxic side effects as the treatment time increases. Therefore, chemotherapy drugs and duration of chemotherapy should depend on the tumor, symptom relief and treatment-related toxicity. Radiotherapy can shrink the tumor and improve the symptoms. It is usually better than radiotherapy alone or chemotherapy alone when combined with chemotherapy. However, radiotherapy is more harmful to the organism, killing tumor cells while also killing normal cells of the organism, causing great damage to the organism. Therefore, it should be used with caution for advanced breast cancer patients with poor physical function, and radiotherapy can produce a series of toxic side effects on the human body. In view of the disadvantages of radiotherapy, experts further remind breast cancer patients that if radiotherapy is combined with biological cellular immunotherapy, it can not only increase the effectiveness and reduce the toxicity, but also improve the quality of survival and prolong the survival period for patients with extensive metastasis, poor physical function and intolerance to radiotherapy. In addition, how long a patient can live with breast cancer is also closely related to the patient’s physical function. A good physical function and strong immunity can resist the development of cancer and tolerate various drug treatments. Therefore, it is extremely important for breast cancer patients, especially those with mid- to late-stage breast cancer, to improve their immune function and strengthen their resistance to tumors. First of all, it is advisable to eat seaweed, nori and other foods that have the function of dissolving phlegm and softening hard knots in the daily diet. For advanced breast cancer, which is prone to gastrointestinal reaction and bone marrow suppression during chemotherapy, sugar cane juice, Buddha’s hand and fresh fruit juice can be consumed. Fatty foods should be reduced, less fatty meat and less spicy food. Finally, patients are reminded. Don’t be trapped by the question of how long you can live with advanced breast cancer and affect your treatment mood, and don’t believe in those advertisements that advertise that a certain drug can make you live for a long time with advanced breast cancer, but it is most important for patients to receive regular treatment as soon as possible.