If you want to urinate but can’t get out, it is recommended to go to the hospital for further examination to clarify the possible causes.1. The mucous membrane of the urinary system is congested and edematous, resulting in increased sensitivity, and there is not much urine in the bladder but it can produce an obvious sense of urinary irritation, so at this time the sense of urination is obvious but you can’t urinate, and it may be accompanied by symptoms such as urinary pain, urinary urgency and lumbago, etc. It is recommended to keep a small amount of urine for laboratory examination to exclude the presence of infection.2. Difficulty in urination due to various urethral obstruction factors, such as large amounts of urine retention in the bladder, the presence of male prostatic hyperplasia or the presence of urethral stricture, urethral stones, urethral tumors and other diseases, resulting in urethral obstruction and inability to urinate. Patients may discharge a little urine when they forcefully urinate, but most of the urine remains within the bladder, causing an obvious feeling of holding urine. Ultrasound examination of the urinary system and urethroscopy are needed to exclude the above-mentioned diseases.