The causes of kidney cysts are not very clear, the etiology is relatively complex, and it is generally believed that they may be related to the following factors: 1, congenital dysplasia; 2, genetic mutation: it may be in the process of embryonic formation, due to the role of various factors, so that genetic mutation and the formation of kidney cysts; 3, infection: it may be related to upper respiratory tract infection, urinary tract infection, gastrointestinal tract infection, etc., but whether it is bacterial infection or viral infection, all may have certain effects on kidney cysts; 4, toxins: common toxins such as pesticides, certain chemical agents, especially drugs with certain nephrotoxicity, etc.; 5, diet: poor dietary habits may also play a role in the process of occurrence, development and changes of kidney cysts.