The common reasons for the high number of urination and low urine volume, according to clinical experience, are summarized in the following categories: 1, acute urinary tract infection, not only the number of urination, single urination is small, there will also be fever, urinary urgency, painful urination, small abdominal acidity, pain and discomfort. 2, patients with neurogenic bladder, prostatic hyperplasia, due to the presence of different degrees of residual urine volume, coupled with symptoms of urinary obstruction, so the number of urination 3, stones at the end of the ureter, especially stones embedded in the ureteral bladder opening, stones stimulate spasm at the end of the ureter and indirectly stimulate the bladder triangle, while making constant urination but no real meaningful urination each time. 4, some patients simply show more frequent urination and less urine volume, but routine urinalysis, color ultrasound examination of the urinary system, and even This is mainly seen in patients with urethral syndrome and in middle-aged women with anxiety disorders.