Urine color is a little green, the possible reasons: 1, taking drugs, such as antibiotics or vitamin B can lead to urine greenish, or yellowish green color, not accompanied by any urinary abnormalities, no urinary frequency, urgency, urinary pain, and will not produce lumbar pain, fever and so on. Urinalysis is a normal performance, no special treatment, drink more water, after the course of treatment enough to stop the relevant drugs can be. 2, appear in the urine Pseudomonas aeruginosa infection, there can be a greenish urine, accompanied by severe urinary tract irritation symptoms or systemic symptoms. Such as urinary frequency, urinary urgency, urinary pain, or chills, high fever and other symptoms, the need for urine culture tests, such as culture of Pseudomonas aeruginosa can be diagnosed. 3, the urine contains more bilirubin, if the urine is stored in the bladder for too long, or discharge of urine placed in a long time, bilirubin is oxidized and reduced to bilirubin, which is manifested in the case of the color of the urine greenish urine, urinalysis, bilirubin and urine bilogen levels significantly elevated, visible. Urine tests show that bilirubin and urobilinogen levels are significantly elevated.