Metastasis of anal canal cancer to groin is more serious, indicating that the cancer cells have already metastasized lymphatically, which needs to be treated with surgery or radiotherapy in time. Anal canal cancer belongs to a kind of malignant tumor, once it metastasizes to the groin, it indicates that it has already reached the advanced stage, which will lead to symptoms such as dyspepsia, local pain and lumps. It seriously threatens the life and health of patients and requires timely treatment to control the further deterioration of the disease. Anal canal cancer needs radiotherapy combined with chemotherapy to eliminate tiny lesions, and can be treated with chemotherapeutic drugs such as 5-fluorouracil, bleomycin, mitomycin and other chemotherapeutic drugs as prescribed by doctors. If necessary, late palliative treatment can be carried out through local excision to maximize survival time and improve the quality of life of patients. This situation is more serious, need to actively cooperate with the doctor treatment, at the same time should adjust their own mentality, avoid self-loathing.