Hot summer season, Yi urine concentration, the higher the concentration of calcium, the risk the greater the risk of stones, this is the summer and autumn acute urinary stone patients more easily.

• 夏秋季节气候炎热，尿液易浓缩，尿钙浓度越高，患结石的危险就越大，这就是夏秋季尿结石急性发作病人容易增多的原因。