The majority of men’s urine is transparent, when the amount of urine will also appear light yellow, when the urine is less, especially the morning urine, there may be a darker urine color phenomenon. The causes of yellow urine in men are mainly several: first, drink less water, and more exercise, sweating more, it is easy to appear yellow phenomenon; second, the existence of urinary system diseases, especially prostatitis, urethritis, cystitis, these inflammatory stimuli easy to appear yellow urine, but also easy to appear frequent, painful urination, incomplete urination and other symptoms; third, the liver and biliary system diseases, that is, the bilirubin in the urine, the Urobilinogen increases, causing the yellow urine; Fourth, the impact of drugs or diet, such as in the diet intake of acidic food more, it is easy to urine color changes, such as a short period of time to consume a lot of carrots. When men have yellow urine for a long time, they must pay attention to it, find out the causes of yellow urine and treat the symptoms.