Cefdinir is a cephalosporin and can be used to treat urinary tract infections. The exact duration of cefdinir administration needs to be decided according to the patient’s specific situation, such as the patient’s gender and the nature of the urinary tract infection. Uncomplicated urinary tract infection refers to urinary tract infection without other comorbidities. Complicated urinary tract infection refers to urinary tract infection with recurrent or persistent episodes of functional abnormalities in the urinary tract system, such as obstruction, stones, etc., or extra-renal co-morbidities, such as diabetic patients. I. Women: 1. Uncomplicated urinary tract infection: If the patient presents with asymptomatic hematuria, cefdinir can be applied for 5-7 days, and patients with acute cystitis during pregnancy usually have the option of applying cefdinir for 7 days. In the case of patients with acute simple cystitis, the treatment as well as the course of treatment is single-dose therapy, 3-day short course therapy, and waiting for the urine bacteriological examination to turn negative. 2. Complex urinary tract infection: Patients with non-pregnancy acute pyelonephritis can take cefdinir orally for 14 days if the symptoms are mild to moderate, and observe the efficacy after 48-72 hours after the drug is administered. If the patient’s symptoms have been controlled after the 4th day of oral cefdinir but bacteriuria is still present, appropriate drug therapy should be selected based on drug sensitivity testing, usually for 6 weeks. In patients with acute pyelonephritis during pregnancy, if the symptoms are mild, cefdinir treatment can be selected and applied for at least 14 more days after the symptoms have improved. Second, men: 1. Uncomplicated urinary tract infections: patients can usually use cefdinir for 7 days, but patients with combined or suspected complicated factors usually apply cefdinir for 2 weeks; 2. Complicated urinary tract infections: patients are usually treated for 7-14 days, and patients with lower urinary tract infections such as frequent, urgent and painful urination, the treatment cycle is usually 14 days, and depending on the patient’s condition, it sometimes needs to be extended to 21 days. Patients with urinary tract infections should go to the hospital in a timely manner and undergo relevant examinations, such as urine routine and drug sensitivity tests, etc. After a clear diagnosis, targeted treatment should be carried out under the guidance of a professional doctor. In daily life, you should drink a lot of water to promote the discharge of inflammation, and your diet should include watermelon, grapes, pineapple, celery and pears to promote urination and help relieve symptoms such as frequent, urgent and painful urination. Sour, spicy and stimulating foods, including spirits, chili, vinegar, lemon, etc. need to be avoided.