Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advise. A person with horseshoe kidney generally does not have symptoms of problems with it but might develop kidney stones and infections more often than others that don t have the condition. The horseshoe kidney is a congenital condition meaning it happens during the development of the child and there is no specific cause found related to it most of the times. It generally is more common in males but may happen very often in females with certain other congenital conditions (especially turner syndrome) so it is important to check the child for other congenital conditions and if this is the only abnormality the child has than there is nothing to worry. Hope I have answered your query. Let me know if I can assist you further. Kind regards, Antoneta Zotaj, MD