In recent years, with the continuous development of targeted therapy and immunotherapy, doctors have gained more new "weapons" for treating tumors. Meanwhile, traditional diagnostic and treatment methods such as chemotherapy, surgery, and biopsy still play an irreplaceable role. For a long time, there have been many rumors circulating online about cancer treatment methods. "Chemotherapy will make the development of cancer faster" "Surgery or biopsy will make cancer cells spread in the body" "Hunger therapy can fight cancer"... These statements make many patients doubt the currently commonly used cancer diagnosis and treatment methods, and believe in the so-called "folk prescription". In response to the above rumors, the reporter interviewed relevant experts. Rumor 1: Chemotherapy accelerates cancer development. Expert response: Standardized and reasonable use of chemotherapy can significantly inhibit cancer cell growth. Chemotherapy has always been a key means of combating malignant tumors. In recent years, a controversial viewpoint has claimed that chemotherapy not only fails to effectively control cancer, but may also accelerate the progression of the disease. Regarding this, Yu Haipeng, the chief physician of the Interventional Therapy Department at Tianjin Medical University Cancer Hospital, said that the standardized and reasonable use of chemotherapy can significantly inhibit cancer cell growth, prolong patient life, and improve prognosis. "Due to the much faster proliferation rate of cancer cells than normal cells, chemotherapy drugs' killing power on cancer cells is significantly higher than their impact on normal cells." Yu Haipeng said. Modern medicine has always been committed to finding ways to alleviate the side effects of chemotherapy. For example, by adjusting the dosage and administration time of chemotherapy drugs, the damage to normal cells can be effectively reduced; The use of growth factors and other supportive treatments can help patients better cope with possible anemia, infections, and other issues during chemotherapy. Meanwhile, with the advent of precision medicine, chemotherapy regimens are also constantly being optimized. Under the guidance of genetic testing, personalized treatment enables doctors to choose the most effective combination of chemotherapy drugs for patients, further improving treatment targeting and reducing the side effects of chemotherapy. Yu Haipeng believes that chemotherapy is currently moving towards a more personalized and efficient direction, providing patients with higher survival opportunities and better treatment experiences. Rumor 2: Surgery or biopsy can promote cancer cell spread. Expert response: Multiple preventive measures make the impact of spread minimal. Surgery and biopsy are two important medical methods that help clarify diagnostic results and are crucial in the treatment plans of many cancer patients. However, some people believe that surgical or biopsy procedures may promote the spread of cancer cells in the body. Regarding this, Yu Haipeng said that multiple studies have shown that surgery and biopsy have minimal effects on the spread of cancer cells. Firstly, the metastasis of cancer is not determined by a single factor, but involves complex biological processes, including cancer cells shedding from the primary site, invading surrounding tissues, entering the bloodstream, colonizing and growing in distant organs. "Even if a very small amount of cancer cells may be released into the bloodstream during surgery or biopsy, the vast majority of cancer cells will die in circulation," said Yu Haipeng. Secondly, modern medicine has taken multiple preventive measures in surgical and biopsy operations. For example, in biopsy, precise guidance and the use of trocar needles are used to minimize the risk of tumor spread and metastasis. "For localized tumors, surgical resection is often the first choice for curative treatment. This significantly improves the chances of long-term survival for patients." Yu Haipeng explained that any medical operation has its own trade-off between risk and benefit. When deciding whether to undergo surgery or biopsy, doctors will comprehensively consider whether the patient's specific situation is appropriate, including the type and stage of cancer, the overall health status of the patient, and the expected treatment effect. Rumor Three: "Hunger Therapy" Can Fight Cancer Experts Respond: Limiting nutrient intake can weaken the patient's own immune system. "Hunger therapy" as an anti-cancer "folk remedy" has been circulating for a long time, emphasizing the use of limiting nutrient intake to "starve" tumor cells. "Although tumor cells, like normal cells, rely on nutrients and energy for their growth and division, the human metabolic regulatory system is complex, and simple dietary restrictions cannot achieve the expected therapeutic effect." Yu Haipeng said that cancer treatment is a complex process that requires personalized medical plans and comprehensive support, including nutritional management. The body of cancer patients is in a high metabolic state, and tumor cells have abnormal metabolic pathways that can more efficiently utilize limited nutritional resources. "This means that even if patients reduce their food intake, tumor cells can still find ways to obtain the necessary nutrients, and may even maintain their growth by decomposing the patient's own healthy tissue, leading to weight loss and muscle loss. Reducing nutrient supply, tumor cells will snatch up the nutrients from normal organ tissue for their own growth. This can be said to be 'killing one hundred enemies, self damaging three thousand'. Yu Haipeng said that malnutrition not only does not starve cancer cells, but also weakens the patient's immune system, reduces their tolerance and responsiveness to standard treatments such as chemotherapy and radiation therapy, and affects the overall treatment effect and patient's quality of life.". Yu Haipeng introduced that true hunger therapy in the medical field refers to targeted treatment methods for tumor angiogenesis or interventional treatment in which arterial embolization reduces the blood supply to the tumor. Tumors stimulate the generation of new blood vessels in order to grow and spread, forming their own blood supply network. By using anti angiogenic drugs or interventional embolization methods to cut off the vascular supply to the tumor, it can prevent the tumor from obtaining more nutrients to continue growing, achieving therapeutic goals. At present, interventional embolization methods have been proven to be effective in the treatment of certain types of cancer (such as liver cancer, lung cancer, kidney cancer, etc.) and have become an important development direction in cancer treatment. (Lai Xin She)