The main symptoms of prostatic hyperplasia are urinary disorders, and their clinical manifestations are as follows: 1, urinary frequency, urinary urgency: early onset, often for the increase in the number of urination, especially the increase in nocturnal urination and draw the attention of patients. It is caused by the presence of congestion and edema in the bladder neck and residual urine, resulting in a decrease in bladder capacity. When there is inflammation or stones, there is urinary urgency and pain; 2. Difficulty in urination: characterized by waiting for urination, weakness in urination, thinning of the urine line, and even interruption of urination; 3. Urinary incontinence: the amount of residual urine is increasing, and when there is a large amount of residual urine, there is often overflowing incontinence; 4. urinate, and the abdominal distension and pain are unbearable, forcing the patient to go to the emergency room. The causes of acute urinary retention are commonly cold, fatigue, alcohol consumption and other factors. The complications of prostatic hyperplasia are as follows: 1. Hematuria: due to obstruction of the bladder neck, venous reflux is blocked, producing varicose veins in the bladder, and sometimes blood vessels can rupture and blood in the urine can occur. In the presence of bladder stones or tumors, carnal hematuria is also inevitable; 2. Due to frequent forceful urination, abdominal pressure increases, which can cause hemorrhoids, hernias and other comorbidities; 3. Late symptoms: long-term urinary tract obstruction can easily cause urinary tract infection, and when the degree of obstruction increases, hydronephrosis and renal insufficiency may occur.