Surgery, radiotherapy and chemotherapy do not mean that you are safe and sound, you should follow up regularly and pay attention to daily care. If recurrence or metastasis is found, timely diagnosis and treatment should be made. Cancer usually requires surgical treatment, after which radiotherapy can be used as appropriate to reduce the probability of recurrence and prolong the survival period. However, even with postoperative adjuvant radiotherapy, recurrence and metastasis are still possible. Therefore, regular imaging examinations of the cancer site should be conducted after treatment to closely observe whether there is any recurrence. Meanwhile, chemotherapy and radiotherapy are damaging and may cause complications. For example, chemotherapy is prone to liver and kidney function damage and bone marrow suppression, while radiotherapy is prone to platelet count reduction. Therefore, regular blood tests should be conducted after radiotherapy. After surgery and radiotherapy, you will be easily fatigued and have poor resistance, so it is recommended that you eat a high-quality protein diet and try not to go to places where people gather.