Does urine routine have to be the first time in the morning?

The urine

routine test is to analyze the physical parameters, chemical components and formed components of urine, so as to assist in the diagnosis of urinary system-related diseases. The sample used for this test is fresh urine. Although the first urine concentration in the morning is high, the urine components at other times will not change greatly. Therefore, patients only need to ensure that the urine is fresh when collecting samples, and there is no need to deliberately retain the first urine in the morning

.