A recent article in the NY Times reported a study citing that the incidence of kidney stones was twice as high in the obese population who had had gastric bypass than in the obese population who had not had weight loss surgery. Although not common, the incidence was about 8% after bypass compared to about 4%.
We have seen a few cases of kidney stones in our patients occur after gastric bypass, gastric band and gastric sleeve. Part of the increase incidence I believe is due to the fact that our post-op patients cannot drink water as fast or, “chug” it down, which may in part limit their fluid intake and be partly responsible for increased kidney stones. However, for many regular health reasons, we strongly encourage all our patients in the pre-op teaching classes to increase their water intake after surgery. If you have any questions about kidney stones that develop after weight loss surgery, please feel free to post them here.
– Dr. Darren Soong
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