What causes a kidney tumor?

The cause of suprarenal tumor is unclear at this stage. Most suprarenal tumors are considered renal tumors, and some patients may be angiomyolipoma. Renal tumors are referred to as renal cancer. The causes of the disease may be related to smoking, obesity, diet, occupational exposure to chemicals, and genetic factors. Genetic factors are mainly related to mutations or deletions of the vhl tumor suppressor gene. The incidence of kidney cancer varies greatly from country to country. The incidence in developed countries is higher than that in developing countries. The incidence in cities is higher than that in rural areas. The most typical manifestations of kidney cancer are hematuria, pain and mass. After doing B ultrasound examination, it can be found.