The so-called morning urine is the first urine when you wake up, and it actually has little to do with the time of the urine test at the hospital. However, if you get up at 5-6 o’clock, the urine left may appear to be corrupt when you get it to the hospital again. If the urine can be sent to the hospital within 30 minutes, the first urine sample of the morning urine is available for laboratory testing. If you urinate for the first time at 6 o’clock and send it to the hospital at 8 o’clock, the urine bacteria will grow and the urine specimen cannot be used, so if it is necessary to be a morning urine test item, it is recommended to go to the hospital within 30 minutes after urinating, the hospital is open 24h, you can hang up the emergency room and keep the urine sample; if you do not have to keep the first urine of the morning urine, you can generally take a long delay between two urine tests. For example, if you have just finished urinating, the next time you urinate, do not give a urine cup and urinate immediately afterwards, hold it for 1-2 hours and then urinate again, which can also retain bladder and urethral sediment. To urinate in the morning because you want to collect more bladder and urethral deposits or decomposition of protein, holding more urine in the body for a while actually works similarly.