What is the reason for incomplete bladder emptying due to benign prostatic hyperplasia?

Patient's question:

Prostate hyperplasia, previously underwent surgery in 2007, symptoms were somewhat relieved, but became ineffective after one year. Recently, urinary urgency and frequency have become more severe, especially nocturia has increased significantly, generally 6-7 times per night, sometimes up to 10 or more times. Recently had a detailed ultrasound examination at Community Hospital B, diagnosed with prostate hyperplasia and about 500 ml of residual urine in the bladder. What is the cause of incomplete bladder emptying due to prostate hyperplasia?

Doctor's answer:

Prostate inflammation or fibrosis occurring again can compress the prostate, causing the slow flow of prostatic fluid. When the prostatic fluid passes through the urethra, there will be a sensation of urination, but in reality, there isn't much urine in the bladder. Moreover, if a small amount of urine blocks or occupies the urethra, symptoms such as frequent urination and incontinence may reappear. It is recommended that patients undergo two tests—prostatic fluid microscopy and routine urinalysis—to diagnose the cause. Additionally, drinking to alleviate your current symptoms is beneficial for patients with prostate hyperplasia. Timely treatment can reduce the incidence of the disease, whereas delayed treatment may affect overall health.

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