Urinary frequency, urinary urgency, urinary waiting and incomplete urination are common symptoms in clinical urology, mostly seen in patients with lower urinary tract obstruction, indicating that the patient has obstruction in the lower urinary tract. Patients show an increased frequency of urination, must go to the toilet immediately if they have urine, but cannot urinate immediately, and often have a feeling of incomplete urination after urination. For men, lower urinary tract obstruction is mainly seen in prostate disease, mostly in prostatitis for young and middle-aged men, and in prostate hyperplasia for older men. For female patients, it may be fibrosis or contracture of the bladder neck or elevation of the posterior lip of the bladder neck, etc. Further cystoscopy is often required to confirm the diagnosis.