The high incidence of kidney stones is between the ages of 20 and 50, because this is a period of young adulthood, when patients may engage in heavy physical labor or a lot of sports, which may cause less water consumption or excessive loss of body fluid and the formation of concentrated urine, so the probability of having kidney stones is relatively high. In other age groups, physical labor is relatively less and the loss of body fluid is relatively less, so the probability of developing stones is relatively low. However, this is not an absolute situation, but it is only at this age that stones are more likely to occur. The formation of stone disease is mainly related to the concentration of urine, which for a long time can lead to over-saturation of solute concentration in the urine, gradually forming crystals and then stones. It is also associated with the presence of chronic urinary tract infections, urinary tract abnormalities or poor dietary habits, and too few components in the body that inhibit stone formation. The causes of stone formation are complex, so a combination of treatments is needed in the treatment process.