Renal deposition refers to calcium salt deposition in kidney, most of them are related to age, some of them are caused by hyperparathyroidism, and white spots will be found on the kidney during CT examination of the kidney. If kidney stones are excluded, then we should consider calcium salt deposits in the kidneys, also known as calcification, which is much more likely to occur in older people than in younger people, and does not require special treatment for the time being if there are no symptoms. Some diseases can also lead to renal calcium salt deposition, such as hyperparathyroidism, hypercalcemia and renal trauma can cause calcium metastasis, so that calcium salts are deposited to the kidney site leading to calcification foci in the kidney, which need to be treated. While treating the primary disease, you can also drink water boiled with the skin of winter melon, and eat less calcium-rich foods such as shrimp skin and milk during the treatment period.