Metastasis of kidney cancer to inguinal lymph nodes is rare. Kidney cancer can metastasize to many parts of the body, which can be divided into local metastasis and systemic metastasis, and the sites of metastasis include perirenal tissues, lymph nodes, distant organs and so on. 1. Perirenal tissues: the tumor grows gradually with time, locally breaks through the surface membrane of kidney or protrudes into the renal pelvis, manifesting symptoms such as lumbago and hematuria. 2. Lymph nodes: it can be transferred to renal paravascular and aortic lymph, and upward to cervical lymph nodes. The more the number of metastatic lymph nodes and the more distant the location, the worse the tumor stage grading. 3. Distant organs: if the cancer tumor invades the renal vein, it can lead to the formation of thrombus in the vein, and then it can be transferred to lungs, liver, bones, etc. When kidney cancer metastasizes to other parts, it can be transferred to other parts. When kidney cancer metastasizes to other parts, it will not only show the original clinical manifestations, but also the symptoms of the affected parts. If multiple metastases occur, the treatment is difficult and the prognosis is poor, so it is necessary to actively cooperate with the treatment. If you find any discomfort, it is recommended to seek medical treatment in time and actively carry out treatment.