Most germs in UTI are caused by retrograde infection and are divided into gonococcal and non-gonococcal urethritis. Amoxicillin is a semi-synthetic broad-spectrum penicillin, which has a strong bactericidal effect on some sensitive bacteria. In most cases, patients with simple UTIs can recover from taking amoxicillin for 3-5 days, but in the case of recurrent and complicated UTIs, or chronic UTIs, the course of treatment may take more than 1 week. However, the specific recovery time of patients may vary due to differences in disease progression, personal constitution and other conditions. After taking amoxicillin orally for 3-5 days, if the symptoms disappear and the laboratory results are normal, it is usually a sign of cure. If the symptoms do not disappear but worsen, or the laboratory results show aggravation, it is recommended to check and clarify the pathogenic bacteria. Under the guidance of professional doctors, change other antibiotics for treatment, such as levofloxacin, moxifloxacin, fosfomycin, azithromycin, minocycline, etc. In addition to ensuring that the course of treatment is adequate, drink more water to enhance urine output and avoid holding urine. Avoid sexual contact during the illness. Practice good hygiene and wash your underwear daily. Actively treat and review regularly. In addition, patients should have a light diet and can eat more fresh fruits and vegetables, such as apples and celery.