Kidney cyst is a relatively common kidney disease, which usually has no obvious symptoms and can only be detected during a health checkup. There are many causes of kidney cysts, such as congenital dysplasia of the kidney, viral infections, ageing, poor dietary habits and other factors that may cause it. Simple kidney cysts do not have a great impact and harm to the body, so there are no particularly obvious symptoms in daily life. If the kidney has congenital dysplasia, then it will cause renal tubular diverticulum, which will lead to the production of cysts, and various viral infections cause organic lesions in the kidney, then there will also be the situation of kidney cysts. As the human body ages, the cells in the surface layer of the kidney gradually recede or age, then there will also be kidney cysts. Bad dietary habits, such as always eating foods with high salt content or always eating foods with high fat content and calories can also stimulate the kidneys, which can cause kidney cysts. The examination of kidney cysts is also relatively simple and can be clearly confirmed by kidney ultrasound examination or CT examination. After the causes of kidney cysts are clearly identified, you should pay special attention to minimize the consumption of high salt and high fat foods in your daily life. Develop good living habits, strengthen physical exercise, improve their body resistance and immunity, and do regular health checkups.