There are many reasons for the red color of urine, it is recommended to go to the hospital for further examination to clarify the cause and then deal with it symptomatically. 1. Exclude drugs or food staining, such as eating food containing red pigment or using some special drugs, such as rifampin capsules and tetracycline. It is recommended to perform routine urine examination, if no red blood cells are seen in the urine routine, and the occult blood is negative, then consider the cause of staining, stop the intake of food or drugs related to red pigment, and observe whether the urine color is normal. 2, if red blood cells are seen in the urine routine or the occult blood is positive, then consider bleeding, possible diseases include urinary stones, usually accompanied by pain in the lower back and abdomen, need to perform ultrasound examination of the urinary system, if there are stones 3. When urinary system infection occurs, it can also lead to red urine color due to inflammation resulting in urinary system epithelial congestion, edema and bleeding, usually accompanied by frequent urination and urinary urgency, etc. Oral anti-infective medication is required, and the medication can be chosen from one capsule of levofloxacin hydrochloride, taken orally 3-5 times a day for 3-5 days, and observe whether the urine color returns to normal.