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Smoking can negatively affect kidney health by reducing blood flow, increasing inflammation, and causing oxidative stress, all of which may contribute to the formation of kidney stones. While smoking is not a direct cause of kidney stones, studies suggest that smokers may have a higher risk of developing them than non-smokers. It can also slow recovery after kidney stone treatment and worsen overall kidney function. Quitting smoking, staying hydrated, and maintaining a healthy diet are important steps to lower your risk of kidney stones and protect long-term kidney health from Kidney C.O.P.