Red blood cells (RBC) can be present in urine even when they are not visible to a person. Also known as hematuria, RBC in urine can indicate an infection, kidney disease, and other health conditions.

The authors do not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and have disclosed no relevant affiliations beyond their ...

Your urine's colour offers vital health clues, from pale yellow indicating good hydration to darker shades suggesting dehydration. Unusual hues like red, brown, or even blue-green can signal ...