As an oncologist with extensive experience in cancer treatment, I can tell you that stage 4 cancer, also known as metastatic cancer, is the most advanced stage of cancer where the disease has spread to other parts of the body. While it is true that curing stage 4 cancer is unlikely, there have been significant advancements in treatments that can shrink or control the disease, leading to improved quality of life and potentially 延长生存期 (extend survival). However, it's important to note that each case is unique, and the response to treatment can vary greatly from one patient to another. Some patients may experience a long-term remission, which could be considered a functional cure, although the term is not typically used in the context of stage 4 cancer. The goal of treatment at this stage is often to manage the disease as a chronic condition rather than to eradicate it completely. In recent years, there have been breakthroughs in immunotherapy, targeted therapies, and personalized medicine that have improved outcomes for some patients with stage 4 cancer. It's crucial for patients to discuss all available treatment options with their healthcare team to determine the best course of action for their individual situation. read more >>

In quite a few cancers, stage 4 means the cancer has spread (metastasised) to another part of the body to form secondary cancers (metastases). As a general rule cancers that have spread are difficult to treat and are unlikely to be cured in the long term, although treatment can help to shrink or control them.read more >>