After the double J tube is removed from the ureter, there is a possibility of urinary tract infection, which can be actively treated with anti-inflammatory drugs such as cefixime, ciprofloxacin or tinidazole as prescribed by the doctor. 1. Cefixime: Cefixime is a third-generation cephalosporin antibiotic, which can inhibit most gram-negative bacterial infections, and can effectively inhibit the growth and reproduction of bacteria in the urinary tract after the double-J tube is removed. 2. Ciprofloxacin: The quinolone antibiotic ciprofloxacin is also very sensitive to urinary tract infections, and can also be used after the removal of the double J tube. 3. Tinidazole: In addition to inhibiting anaerobic infections, tinidazole can also effectively inhibit urinary tract infections and reduce the symptoms of urinary pain, urinary frequency and other infections that occur after the removal of the double J tube. After the removal of double J tube from the ureter, must be under the guidance of the doctor for active anti-infection treatment, these antibiotic drugs may cause nausea, fatigue and some other non-specific adverse reactions, allergic to the drug is prohibited.