Iodine 125 particle implantation therapy is a new technology in tumor treatment nowadays. So, what is iodine 125 particle implantation therapy? What advantages does it have? Malignant tumor is a kind of multi-morbidity and common disease. More than 1.4 million people die from tumors in China every year. For the treatment of malignant tumors, apart from early surgical resection, there are more limitations of conventional surgery and external radiotherapy in middle and late stages. For example, the side effects are large, not easily tolerated by patients and easy to recur. In recent years, the newly developed iodine 125 particle implantation method can make up for the shortcomings of conventional treatment by avoiding the shortcomings. Features: Direct implantation into tumor Iodine 125 particle implantation therapy is actually a kind of radiation therapy for tumor. However, it is under the guidance of CT, ultrasound and other images, iodine 125 particles emitting low energy gamma rays are directly implanted into tumor tissues to kill them continuously. As we know, there are 3 main types of conventional treatment for tumors: surgical resection, chemotherapy and radiation therapy, and biological therapy, etc. However, these therapies are not suitable for all tumors. Radiation therapy is very damaging to the normal tissue structure of human body due to the large radiation area, high dose of radioactive rays and penetration of human body. Compared with conventional external irradiation therapy, iodine 125 particle implantation under CT and ultrasound guidance has significant advantages: small dose of internal irradiation radiation, longer action time, more accurate treatment localization, high local action dose to tumor, small radiation radius, and minimal damage to surrounding normal tissues, which is a very good local treatment measure. Combined with chemotherapy and other systemic treatments, the effect of treating tumors is more obvious (it can kill distant micro-metastases) The local treatment of tumors by this technology can reach or approach the effect of surgery and other lesion-destroying therapies. For certain tumors that have recurred or limited metastases after surgery, iodine 125 particle implantation has obvious advantages. In addition, it can also be used as a complementary and synergistic treatment to conventional radiation therapy, which will achieve better therapeutic results. Applications: More than adjuvant therapy In the eyes of many people, iodine 125 particle implantation is only an adjuvant way to treat tumors. In fact, it can not only be used as the main means of treatment for tumors, but also as the preferred treatment for some tumors. For some tumors that are not sensitive to conventional radiotherapy, iodine 125 particle implantation is an important treatment measure, such as prostate cancer, which was commonly treated with a combination of surgical resection, radiotherapy and chemotherapy in the past, but its effect was not satisfactory. Nowadays, it is possible to implant iodine 125 particles directly without surgery to inhibit tumor growth and achieve the same or better effect of conventional treatment, while preserving its physiological function. In addition, iodine 125 particle implantation is also a good choice for patients who are unwilling to undergo radical surgery and for some inoperable solid tumors. In addition, for patients with metastatic tumors (non-extensive metastases), iodine 125 particle implantation can be used to effectively control the growth of metastases, maintain organ function and reduce pain; for tumors that cannot be removed surgically due to physical condition, tumor location and other factors, iodine 125 particle implantation can also be used for treatment. Unfortunately, many people miss the best treatment time because they do not know this method or do not know much about this method, because the earlier the focal tumor suitable for iodine 125 particle implantation treatment is placed, the better the effect! Of course, iodine 125 particle implantation therapy is not a panacea, and it is not effective for diffuse metastases, such as cancerous ascites, cancerous pleural fluid, and extensive metastases throughout the body.