If you stop taking Hydrochlorothiazide will your feet swell up?

Hello, more than likely you will begin to retain water and elicit edema in your ankles. Only stop taking it if your dr suggests it, otherwise it's probably doing its job so continue to take it.

They might. Hydrochlorothiazide or HCTZ is a diuretic or commonly known as a "water pill" so yes, you may retain fluid if you dont take it. It's job is to remove extra fluid.