Zhang S, Huang Y, Wu W, et al. - This study was attempted to assess the distribution and dynamic trends in constituents of urinary stones in China. Researchers examined the composition of 23,182 stones and then recorded between January 2011 and December 2019. They further examined characteristics in terms of stone patient’s gender, age and calendar year. The scarcity of pure stones and a certain proportion of mixtures with infection stone components (e.g., mixtures of CaOx and CA) imply that for effective recurrence prevention, treatment directed against a single stone component is insufficient. The results of this study exhibited that age and gender were significant determinants of stone composition, and according to the observed chronological trends, it appears that in the future, more UA, CA, and MAP stones and fewer CaOx stones may be encountered in the studied population.