Once having kidney stones are you always susseptible to them ?

Kidney stones: Isolated episode of ks doesn't mean a greater risk of having more kidney stone (ks). A formal work up should be considered : family & juvenile hx of ks, uric acid ks, x-ray showing bilat ks, hyper parathyroid dz, hx of uti, hx of urinary blockage, recurrent episodes of ks, certain autoimmune disorders like sarcoidosis.

Yes: Estimates are more than half if first time stone formers will have another.