Renal ultrasound showed small hyperechoic foci in both kidneys. what can cause multiple small stones in both kidneys in a 33 yr. old male? could taking high vit d daily with calcium long term cause it

Possibly: Depends on how high the doses.

Kidney stones: The question is why are you taking vitamin d and calcium (c) at all? Your stones could certainly be due to taking those agents. Have a physician order a 24 hour urine collection for uric acid, c and phosphorus levels. If your calcium is high in it, you may need to be on diuretics to reduce the c there. Have a doctor discuss with you the reasons you should or should not be on vit d and c. Good luck.