The red color of urine in women going to the toilet needs to be considered to be related to urinary tract infections or urinary stones, etc. The causes of this condition may be related to low immunity, stimulation by cold, exposure to non-polluted clothing, dislike of water, and holding urine for a long time. When this clinical symptom occurs, it is recommended to go to the hospital to perform relevant examinations to clarify the diagnosis, such as urinary routine, urinary ultrasound, urine culture, and CT examination of the kidney ureteral bladder. CT examination of the kidney and ureteral bladder has a high resolution and can distinguish well even for negative stones, and then choose targeted medication according to the examination results.