More than 80% of tumor patients have lost the best time for treatment when they are diagnosed with symptoms, while more than 90% of early stage tumors can be cured by surgery. The timing of the first treatment and the treatment method of tumor patients are crucial. Certain patients with early-stage tumors that should be treated with surgery will miss the timing of surgery if they only receive chemotherapy or radiotherapy; patients with non-obstructed esophageal cancer will not be treated with only palliative esophageal stenting; patients with breast cancer that should be treated with combined chemotherapy and endocrine therapy will be less effective if they are treated with only single agent chemotherapy. Of course, surgery for advanced tumors will not help, but will promote metastasis and spread because of the reduced resistance of the body, so chemotherapy or radiotherapy should be preferred. If a systematic and comprehensive diagnosis and treatment plan cannot be established at the first visit, it will delay the disease and directly affect the survival time and quality of life of patients. How can we avoid misdiagnosis and get standardized treatment? 1. People over 40 years old should have a systematic physical examination once every 2-3 years, and if precancerous lesions are found during the examination, they should be treated actively, and most of them can be reversed after treatment. Those who have family history of tumor should have corresponding examination every year. 2. Patients with symptoms should consult oncologists and improve relevant examinations to explain the relevant symptoms and exclude the possibility of malignant tumor. If the symptoms do not improve after treatment or recur after a period of symptom relief, the examination should be done again. Once diagnosed with tumor, you must calm down your emotion, do not rush to the doctor, go to regular medical institutions and choose doctors who have rich experience in diagnosis and treatment of the disease. Ideally, the first consultation and treatment plan for tumor patients should be made by the consultation of doctors in the departments of surgical oncology, internal medicine and radiotherapy. The consultation should include what kind of main treatment method is preferred, whether to operate or not, how to develop radiotherapy or chemotherapy plan, and also adjuvant treatment plan, etc. 4. For patients treated with surgery, the follow-up treatment plan should be formulated according to the intraoperative visualization and pathological examination results. In case of early stage cancer without lymph node metastasis, it is not necessary to add radiotherapy or chemotherapy after surgery, otherwise it will damage the immune system of the body, which is not good for recovery. If the organ cut edge is positive or the lymph node is positive, chemotherapy, radiotherapy or other adjuvant treatment can be selected according to the different organs of the disease. If the first treatment measures are found to be inappropriate, such as surgery only for exploration or palliative resection, intraoperative and postoperative remedial measures should be taken decisively, such as intraoperative iodine-125 particle residual intra-tumor and lymphatic drainage pathway implantation. Intraoperative and postoperative radiotherapy or chemotherapy and thermotherapy are used to compensate for the deficiency of the first treatment. However, at this point, the patient’s survival may already be affected. As a doctor it is more important to inform the patient truthfully whether the treatment plan has failed and how to take remedial measures and other related issues.