Difficulty in urination is defined as poor and labored urination. The degree of difficulty in urination is related to the condition of the disease. In mild cases, the symptoms are delayed urination and a short distance; in severe cases, the symptoms are a thin urine line, dripping and non-linear urine flow, and even the need to hold the breath and strain during urination, or even the need to use hand pressure on the lower abdomen to pass urine. Severe difficulty in urination can develop into urinary retention. Difficulty in urination can be due to mechanical causes. Any obstructive disease below the bladder neck can cause difficulty in urination. These diseases include: bladder neck obstruction, prostatic hyperplasia, bladder and urethral stones, tumors of the bladder and urethra, urethral strictures, urethral valves, stones and foreign bodies of the bladder and urethra, obstruction due to tumor compression of organs adjacent to the bladder, and urethral stenosis. Difficulty in urination can also be due to dynamic causes. This includes both neurological dysfunction or bladder forced urinary muscle dysfunction. The causes of neurological dysfunction include neurogenic bladder, post-anesthesia, spinal cord disease (including malformations, injuries, tumors, etc.), and complications of advanced diabetes mellitus. The causes in terms of bladder forced urinary muscle dysfunction are: diabetes mellitus, forced urinary muscle-sphincter dysfunction, etc. Some dyspareunia can be caused by both of these causes at several times. In the early stages, mechanical causes may predominate, and in the later stages, power disorders appear. For example, in the case of prostatic hyperplasia, the early stage may cause obstruction due to the enlarged prostate gland and cause difficulty in urination. If timely treatment is not provided, it may lead to damage to the bladder forced urinary muscle in the later stage, causing dyskinesia.