Pain in the kidney area caused by urinary tract infection is usually combined with pyelonephritis, which is an infection in the lower urinary tract that gradually spreads to the upper urinary tract and causes infection, which can cause pain in the kidney area due to increased pressure in the renal pelvis. This can be accompanied by symptoms such as frequent urination, urinary urgency or fever, suggesting aggravation of the infection. Urinary tract infections are confined to the lower urinary tract, which means that only symptoms of cystitis and urethritis are present. Patients will not have pain in the kidney area and will only present with frequent urination, urgency and painful urination. If the infection is not effectively controlled and further aggravated, the infection will spread to the ureters and kidneys and ureteral inflammation and pyelonephritis will occur. At this time, back pain, chills and fever will appear, which is a sign that the infection has worsened, and it is recommended to adjust the treatment after going to the hospital for examination. For example, change the original oral antibiotics to intravenous fluids to control the infection as early as possible and reduce the symptoms of pain in the kidney area. At the same time, you need to rest, avoid overexertion, avoid drinking alcohol, avoid holding urine for a long time, etc. Drink more water and urinate more, and supplement medication for early recovery.