My 9 yr old son has strep throat and a kidney disease called iga nephropathy it's a kidney disorder started when he was 5. kidney biopsy ?

IGA nephropathy: Are you asking if he should have a biopsy. The answer is yes. If you asking if he be treated for a strep. The answer is yes as well.

Confusing question: Although some strep strains can cause kidney problems, early treatment usually avoids them. If the kid has a pre-existing kidney problem, the need for a biopsy is best determined by the docs who know him best. A recent strep infection would not require such an invasive procedure, but a significant change in kidney function might.