The color of urine may change depending on the time of day, oral medication or food, and many diseases may also show early signs of urine color. The main component of urine is mostly water, with only a very small percentage of metabolites showing the color of urine. The human body should generally drink about 3,000 ml of water a day, and the clearer the color of the urine, the better. The first time you urinate in the morning, strenuous exercise or hot weather causes a lot of water loss, at this time the color of urine will be yellow or light yellow, oral vitamin B will also show yellow. Eating carrots and other fruits and vegetables with pigment or women’s period, urine will show a temporary abnormal color, such as red, usually after metabolism, drink a few more glasses of boiled water will slowly restore. If the urine continues to turn red and there are no other factors causing it, it is likely to be blood in the urine. There are also urine with celiac-like, similar to thin milk, and with urinary urgency and pain, generally have a urinary tract infection, these cases should be promptly to the hospital, check the urine routine analysis. All in all, normal urine color is transparent, yellowish or yellow, if abnormalities are found, you should promptly go to the hospital to check the urine routine analysis, you can early detection of diseases in the kidneys, bladder and other parts of the body.