Dark yellow urine means: 1, there may be concentrated urine, such as a long time without water or sweating more, or more loss of body fluids can cause urine concentration, or a long time to hold urine state can also cause urine concentration, which can cause the color to deepen, usually not accompanied by any urinary stimulation symptoms, need to drink more water, more fluid to treat; 2, there may be urinary tract infections, generally 2, may have urinary tract infections, generally accompanied by frequent urination, urinary urgency, painful urination, cloudy urine with dark yellow urine, need to conduct routine urine examination to clearly exclude the presence of urinary tract infections; 3, may also suffer from jaundice diseases, such as liver or biliary system diseases, can lead to an increase in serum bilirubin levels, when the bilirubin, urobilinogen and other discharged from the urine will also increase, there will be deep yellow urine, generally not accompanied by any urinary There are no symptoms of urinary irritation, no urinary frequency or urgency, and no cloudy urine. Severe patients may also have yellow staining of the skin and mucous membranes, and liver function tests are needed to further confirm the diagnosis.