system
Given the following post, respond as if you're commenting on Reddit:
human
Why is it that when a person gets kidney stones, he/she has a risk of getting stones again?

From what I understand, those who got kidney stones have a high chance of getting it again. Is there a difference in the risk of getting stones before that person got the stone?
gpt
One interesting reason is that the crystalline formations of minerals can be "contagious" - i.e, as a crystal starts forming, more and more oxylate gets "locked" into position and forms a bigger stone. When it finally breaks off, some might be left behind, serving as the "seed" for the next stone.

Since the conditions that gave rise to the first stone probably haven't changed, the second one is an inevitability.

Drink more water! That means more dilute urine and less free-floating calcium oxylate.