The whole body yellow urine red with fever, the patient can be further clarified through the urine routine examination, if there are red blood cells, leukocytes increase, often suggests inflammation and infection, if there is an increase in urinary bilirubin, often suggests that the liver and gallbladder system problems, if there is no such thing, it may be caused by insufficient water intake. The whole body yellow urine red with fever, it is recommended that the patient to go to the hospital urine routine, for effective diagnosis. If there are red blood cells and elevated white blood cells in the urine routine, it suggests that it is caused by inflammation and infection. If there is an increase in urinary bilirubin and urobilinogen, it may be a problem with the liver and biliary system, it is recommended to do liver function tests and hepatitis markers, liver and gallbladder ultrasound, to effectively diagnose the cause of the increase in bilirubin and urobilinogen. If there is no urine bilirubin and urobilinogen in the urine routine, yellow urine may be caused by insufficient water intake, and it is recommended to increase the amount of water to help alleviate the symptoms. Generalized yellow urine redness with fever, it is recommended that patients with symptoms promptly go to the hospital for examination.