What is the first yellow urine?

1, urine concentration

If there is no urination at night, or less discharge, then the first bubble urine after getting up may be more yellow. Because during sleep, the body will concentrate urine, resulting in an increase in the concentration of pigment in the urine, making the urine yellow.

2, food influence

If you eat food containing yellow pigment the day before, such as carrots, squash, etc., it can affect the color of urine, causing yellow urine.

3, cystitis

Cystitis is caused by pathogen infection, foreign body invasion and other factors. Local inflammatory substances will be mixed into the urine, resulting in yellow urine.