The most common cause of post-urinary drip is prostatic hypertrophy. Prostatic hypertrophy may have only mild or even no symptoms if it progresses around the urethra. If it progresses toward the bladder neck, even if the enlargement is not large, serious symptoms may occur. Patients usually show early signs of increased urination, which is more pronounced at night. Each time they urinate, they often fail to pass, leaving residual urine, which, over time, can lead to congestion and edema in the bladder neck. Prostate enlargement is a degenerative pathology, generally adult men at the age of 30-40, the prostate gland began to have varying degrees of hyperplasia, and symptoms appear after the age of 50. Declining sex hormone levels, neuroendocrine disorders and dietary factors are the causes of its pathogenesis, which is an obstructive disease of the urinary tract caused by mechanical factors. This is due to the enlargement of the prostate tissue, which makes the prostate gland dysfunctional, and feedback causes the testicular function to increase temporarily. The diagnosis of dripping after urination If the prostate enlargement develops around the urethra, it may only have a mild manifestation or even no symptoms. If it progresses toward the bladder neck, severe symptoms may occur even if the enlargement is not large. Patients usually show early signs of increased urination, which is more pronounced at night. Each urination is often incomplete, leaving residual urine, which, over time, can lead to congestion and edema in the bladder neck. As time goes by, the bladder muscles become fatigued, urination becomes more feeble, and residual urine increases, when the prostate becomes more congested and edematous, making the urine line slim and bifurcated. Sometimes the urine line does not form a line and drips out, sometimes the urine line splits into two strands and you have to wait half a minute to a minute to go to the toilet to urinate. In the later stage, if the amount of residual urine is equal to the normal bladder capacity, the urine will automatically overflow when the sound of running water is heard or when the reflex is caused by other stimuli. If the bladder neck outlet is extremely edematous and congested, acute obstruction will occur when stimulated, such as cold, holding urine, overexertion, etc., and the ability to urinate automatically will be completely lost, which is called “acute urinary retention”.