The green color of urine may be caused by eating foods that change the color of urine. For example, eating too much spinach, lettuce, easy to appear green urine during urination, after taking part of the traditional Chinese medicine is also easy to appear green urine, in taking anti-inflammatory pain medication or methylene blue and other drugs, will also appear green urine. It may be due to bacterial infection, due to Pseudomonas aeruginosa infection caused by the appearance of green during urination, in addition to the color change, there will be frequent urination, urgency. Hypercalcemia or vitamin D toxicity can lead to green urine, need to go to the nephrology department of the hospital in time for diagnosis, urine indicators for examination, to clarify the disease and then prescribe the right medicine to avoid the deterioration of the disease.