Painful and frequent urination may be a symptom of urinary tract infection, and the typical symptoms of urinary tract infection are frequent, urgent and painful urination, and even bifurcation of urine and lower abdominal cramps, which can seriously infect the renal pelvis upstream, leading to pyelonephritis and symptoms such as back pain, chills and fever. The pain and urgency of urination need to go to a regular hospital to do urine routine, urine culture and other related tests, and if necessary, also need to do urinary ultrasound to clarify whether there are other diseases may be. After completing the above-mentioned tests, the targeted application of antibiotics is usually based on the location of the infection to determine the length of treatment.