Can Dog Urine Stain In Carpet Make You Sick?

Can Dog Urine Stain In Carpet Make You Sick? In otherwise healthy people, the bacteria and microorganisms found in old urine stains may cause sinusitis, watery eyes, allergies, and inflammation of the airways. Can urine make you sick? Urine is about 95% water. It is not completely sterile of microorganisms, as many sources incorrectly state.