Frequent urination, painful urination, abdominal pain, back pain may be caused by urinary tract infection, renal tuberculosis, urinary tract stones and other causes. 1. Urinary tract infection: such as acute pyelonephritis, can manifest as urinary frequency, urinary urgency, urinary pain and other symptoms of bladder irritation, there will also be unilateral or bilateral low back pain, there is obvious pressure pain in the renal region and percussion pain in the angle of the cribriform spine, there will also be symptoms of high fever. Combined with the typical clinical manifestations and urine examination, the diagnosis can be clear. 2. Renal tuberculosis: the typical manifestations are frequent urination, urinary urgency, urinary pain, and may be accompanied by terminal hematuria, pyuria and other symptoms. When the destruction of renal tuberculosis lesion is serious and tuberculous abscess kidney occurs, it can cause dull pain in the waist, which can be combined with history, clinical manifestations and ultrasound, CT examination to assist in the diagnosis. 3. Urinary stones: such as ureteral stones, can also cause urinary frequency, urinary urgency and urinary pain symptoms, can also cause renal colic, activity after the emergence of microscopic hematuria, etc., combined with the clinical manifestations and ultrasound, X-ray examination, urinalysis and so on can assist in the diagnosis. When there is frequent urination, urinary pain, abdominal pain, back pain and other symptoms may have other causes, need to go to the hospital in a timely manner, and active treatment.