No urinary tract infection, but what about frequent urination?

There is no urinary tract infection, but there is frequent urination, it is recommended to go to the hospital for examination, clear specific reasons: 1, bladder overactivity, more common in women. Often manifested as frequent urination, but not accompanied by urgency, urinary pain symptoms, urine routine examination belongs to normal, is due to excessive frequent contraction of the bladder detrusor muscle, resulting in frequent urination, not accompanied by other urinary tract stimulation symptoms. Simple anti-infection treatment is ineffective, and it is necessary to carry out relevant drug treatment to inhibit excessive contraction of bladder detrusor muscle, or carry out bladder botulinum toxin injection treatment, etc. to relieve the symptoms of frequent urination;2. There are some irritating lesions in the urinary tract, such as kidney stones, ureteral stones, bladder stones, bladder tumors, polyps, etc., which can cause increased bladder irritation. At this time, frequent urination can be caused, but it is not accompanied by symptoms of infection. There may be abdominal pain, low back pain or gross hematuria, and further B-ultrasound or cystoscopy of the bladder area is required to further clarify the presence or absence of relevant irritant lesions.