The clinical manifestations generally appear after the age of 50. Symptoms depend on the degree of obstruction, the speed of disease development, and whether it is complicated with infection and stones, rather than the degree of hyperplasia of the prostate itself. The symptoms can vary from mild to severe. When hyperplasia does not cause obstruction or slight obstruction, it may be completely asymptomatic and has no impact on health.
1. Frequent urination is often the initial symptom of patients with BPH. The early stage is caused by the stimulation of prostate congestion, which is more obvious at night. When the obstruction is aggravated and the residual urine volume of the bladder is increased, the frequency of urination is also gradually increased, which is due to the reduction of the effective volume of the bladder due to the frequent partial filling of the bladder.
2. Dyuria Progressive dysuria is the most important symptom of BPH, which often develops slowly and is sometimes regarded as a natural phenomenon of the elderly without attention. In addition to inquiring about the medical history, the patient should directly observe urination to understand the degree of difficulty in urination. In case of mild obstruction, urination is slow and intermittent, and drips after urination. After aggravation of the obstruction, urination is laborious, the range is shortened, and the urine line is thin and weak, and finally appears dripping.
3. Urinary retention obstruction is weighted to a certain extent. When urinating, all urine in the bladder cannot be drained, and residual urine in the bladder appears. The greater the residual urine volume, the more severe the obstruction. Excess residual urine can make the bladder lose its contractility, which gradually leads to urinary retention and urinary incontinence. It is due to excessive bladder inflation that a small amount of urine overflows from the urethral orifice, which is called overflow urinary incontinence. Acute urinary retention may occur at any stage of BPH, most of which are caused by sudden congestion and edema of the prostate due to climate change, drinking, fatigue, etc.
4. Other symptoms of BPH combined with infection can also include frequent urination, urgency, pain in urination and cystitis. The symptoms are more obvious when there are stones, and may be accompanied by hematuria; Prostatic hyperplasia can cause painless hematuria due to local hyperemia. Hydronephrosis and renal insufficiency may occur in the late stage. Long-term dysuria leads to increased abdominal pressure, inguinal hernia, anal prolapse or internal hemorrhoids, which can occasionally mask the symptoms of prostatic hyperplasia and cause errors in diagnosis and treatment.