Urine is dark yellow

in color due to the presence of urobilin, a waste product that is produced during the breakdown of red blood cells. Dark yellow urine can also be an indication of dehydration, as the urine becomes more concentrated when the body is lacking fluids. It is important to drink plenty of water to maintain proper hydration and ensure that urine is a light, pale yellow color. If urine remains consistently dark yellow or changes significantly in color, it may be a sign of a medical issue and it is important to consult a healthcare provider for further evaluation.