Darker than normal urine can have in the absence of fluid, when the urine is concentrated, therefore morning urine is always darker than the power during the day.

Urine color can also be certain medications or food, for example, about 15% of people having red-colored urine after eating beets.

Dark brown urine but also coexists with hepatitis liver disease, such as infectious hepatitis or when effecting flow of bile gallstone.

Dark urine may also indicate the presence of blood in urine when the urine color red to brown, according to the place where the blood into the urine gets. Colored urine is accompanied by leaching of hemoglobin in the urine when the massive breakdown of red blood cells in circulation, as well as leaching of the dye muscle myoglobin in muscle damage.

These states are accompanied by other systemic symptoms. Particular urine coloration is also in some rare congenital metabolic diseases, such as certain porphyrias, when the urine is dark red, or alkaptonuria, when urine is initially normal, but air darkens.