What would cause urine to smell like iron?

Urine that smells like iron can be caused by the presence of blood (hematuria), which can result from various conditions such as urinary tract infections, kidney stones, or injuries. Additionally, certain medications or supplements, particularly those containing iron, can lead to a metallic odor in urine. Dehydration can also concentrate the urine, intensifying any existing odors. If this change in urine smell persists, it's advisable to consult a healthcare professional for further evaluation.