Cancer is one of the major diseases that jeopardize human health. Getting cancer is like being sentenced to death, which is why there is a saying that “talking about cancer is a big deal”. Once cancer occurs, there may be cancer cells all over the patient’s body. A single surgery to remove the tumor is suitable for the early stage of cancer, but it is powerless to do anything about the spread of cancer cells, while 80% of cancer patients are already in the middle or late stage of cancer when they are diagnosed, so they need to be treated with comprehensive treatment combined with radiotherapy and chemotherapy, in order to achieve the ideal goal of completely killing the cancer cells. Although surgery, radiotherapy and chemotherapy, the three major means of cancer treatment, have demonstrated the great progress of medical science in conquering cancer, they also inevitably bring many adverse reactions to cancer patients, making them suffer a lot. With the development of medical science, the application of tumor molecular targeted therapy technology enables cancer patients to get effective treatment with as little pain as possible, which makes many cancer patients regain their lives. Mr. Ma, 52 years old, is a Shangqiu man from Henan Province, who suffered from lung cancer for 3 years and was already in the advanced stage of lung cancer when he was transferred to the Fifth Affiliated Hospital of Zheng University for treatment, and the cancer cells showed bone metastasis and brain metastasis. In the oncology department of the Fifth Affiliated Hospital of Zhengzhou University, Mr. Ma was first given conventional chemotherapy and radiotherapy to control the growth of cancer cells, which had a certain effect. In the follow-up treatment, targeted therapy was adopted to treat Mr. Ma’s lung cancer by taking drugs orally. As a result, 3 months after the treatment, Mr. Ma’s lung cancer had a big turnaround, not only controlling the growth and spread of cancer cells, but also eliminating the need to take painkillers. Now Mr. Ma is living a very good life. Although he is suffering from lung cancer, he is no different from a normal person, not only can he go to work normally, but also go hiking and exercise when he has nothing to do. After the targeted therapy, the lymphoma cells were all gone. Mr. Liu often suffered from abdominal pain, no appetite, nausea and acid reflux, and he thought he was suffering from gastric disease, but he was examined by the local hospital and found to have gastric lymphoma. Due to the limited level of medical care, doctors were at their wits’ end, and Mr. Liu traveled a long way to the Fifth Affiliated Hospital of Zhengzhou University for treatment. Mr. Liu was further examined and found that the gastric lymphoma had already developed to an advanced stage, and the tumor cells had spread to half of his stomach, so the surgery could not play a role, so the comprehensive treatment plan of “chemotherapy + targeting” was formulated for Mr. Liu. After a period of treatment, Mr. Liu’s lymphoma was completely cured, and the tumor cells on Mr. Liu’s body were completely gone after another review, the effect was so good that it was hard to believe. Breast cancer recurrence serious targeted therapy can also be cured Two years ago, Ms. Zhou found that her breast often pain, touch up the inside as if there is a lump, to the hospital for examination, was diagnosed with early breast cancer, and then in the hospital for surgical treatment, cured and discharged from the hospital. After two years, Ms. Zhou did not expect her breast cancer to recur again and came to the Fifth Affiliated Hospital of Zhengzhou University for treatment, but this time the treatment was not as simple as it was two years ago. Due to the untimely treatment of Ms. Zhou after the recurrence, the skin from the breast to the abdomen was affected with redness, edema and ulcers, and surgery, radiotherapy and chemotherapy were not suitable due to the trauma and large toxic side effects. Considering Ms. Zhou’s situation, doctors finally adopted targeted therapy with less pain and side effects to cure her breast cancer once again. Cancer treatment is no longer so painful Having cancer is painful, and treating cancer is even more painful. Although traditional radiotherapy and chemotherapy can control and kill cancer cells, they have greater toxicity and side effects and hurt normal cells, therefore, many cancer patients suffer from hair loss, vomiting, reduction of red blood cells and other adverse symptoms after treatment. Targeted therapy, on the other hand, solves patients’ worries. The so-called targeted therapy is to design corresponding therapeutic drugs through examination and clarification of cancer-causing parts, that is, target points, which will automatically reach the cancer-causing parts after entering the human body to take effect and make the tumor cells die without hurting the surrounding normal tissues and cells. “Targeted therapy has the advantages of clear gene locus, precise treatment, small trauma, light pain, and exact efficacy, etc. By taking drugs or targeted therapy combined with chemotherapy orally, targeted therapy will be able to achieve the efficacy similar to the traditional treatment methods, and this kind of drug has specificity, and it will be gathered at the tumor cells after entering into the human body, and it will not cause harm to the normal cells, so the toxic side effects are also much smaller.” Cancer can also be controlled like chronic diseases. Human cells themselves exist anti-cancer factor, which plays a very important role in controlling the occurrence and development of cancer, if the anti-cancer factor is powerful, once the cancer-causing factor “mess”, it will be suppressed by the anti-cancer factor; if the anti-cancer factor and the cancer-causing factor “strength”, then both of them will have the same effect on the tumor cells, so the toxic side effects are much smaller. If the anti-cancer factor and the cancer-causing factor are “equal in strength”, they will “coexist peacefully” and the human body will be safe and sound; once the function of the anti-cancer factor decreases, the cancer will take advantage of the opportunity to make trouble, and the cancer will occur, and then the cancer cells will proliferate, proliferate and metastasize, which will jeopardize the life and health of the human beings. And targeted therapy formally utilizes this principle, in killing cancer cells at the same time, play a role in regulating the function of anti-cancer factor, so that the body’s anti-cancer factor function is strengthened, inhibit the cancer-causing factor activity, and ultimately cure the cancer; even if some cancers can not be cured, through the targeted therapy, you can make the cancer controllable like a chronic disease, to improve the patient’s quality of life, and to prolong the patient’s life. “Targeted therapy, as a new technology, has an outstanding effect on the treatment of lung cancer, breast cancer, kidney cancer, lymphoma, gastric mesenchymal stromal tumor, colorectal cancer, but in some places with backward medical care, many patients do not know this technology, and spend a lot of money on treatment, and the effect is not good. And although the drugs of targeted therapy are on the expensive side, but if the treatment is effective, every year there will be China Charity Federation and China Cancer Foundation in the treatment of effective patients, the economic difficulties of patients free of charge to provide drugs for patients to continue treatment, so that the patients’ treatment costs spent to the real place, and at the same time also reduce the economic burden of patients.”