Bladder infections are most commonly seen in female patients, as the female urethra is very close to the vagina and anus, making it easy for bacteria to cause infection. Symptoms of bladder infection generally include frequent urination, urgent need to urinate, painful urination, discomfort in the bladder area and perineum, a burning sensation during urination, and sometimes visible blood in the urine at the end of urinating. Diagnosis of bladder infection mainly involves a routine urine test, where a large number of white blood cells can be seen in the urine. In terms of treatment, antibiotics are primarily used, with quinolones such as levofloxacin being common choices, administered over three days. Another option is cephalosporin antibiotics such as cefixime, which is also used for three days. It is important to drink plenty of water, urinate frequently, avoid spicy and irritating foods, and maintain cleanliness and hygiene of the perineal area. Generally, symptoms should improve significantly within about three days, and it is advisable to recheck the routine urine test after one week.