Ask us: How to treat cystine kidney stones in a five year old boy. Dr. Mike Nguyen July 21, 2011 July 22, 2011 2 Comments on Ask us: How to treat cystine kidney stones in a five year old boy. In our “Ask a kidney stone doctor” section, we field questions from stone formers or their family members. Today’s question is about cystine stones in a 5 year old boy…. Read more »