With the aging of our population, prostate enlargement has become a common disease, so how do you know you have prostate enlargement? Usually prostate hyperplasia has the following aspects of performance: 1, frequent urination, urinary urgency, increased nocturia and even urinary incontinence. Frequent urination is the early signal of prostate enlargement, especially more obvious at night, up to 2-4 times. 2, urination effort, thin urine line, urinary weakness and urinary dribbling and incomplete urinary sensation. Enlarged prostate obstruction oppression, blocking the urethra, patients need to overcome great resistance to urination, resulting in urinary effort, thinning of the urinary line, urinary drip after urination and other symptoms. 3, acute urinary retention: prostate hyperplasia obstruction of heavy patients can be due to exertion, cold, alcohol, hold urine for too long, climate change or infection causes prostate congestion, edema, so that urine can not be discharged and acute urinary retention. 4, hematuria: the prostate blood supply is extremely rich, when the blood vessel pressure increases can appear hematuria. 5, bladder stones: prostate hyperplasia for a long time, patients with excessive residual urine in the bladder, can cause urine crystal precipitation to form bladder stones. 6, hernia: prostate hyperplasia patients have difficulty urinating, need to abdominal exertion and holding breath to urinate. As a result of frequent exertion, higher abdominal pressure intestines will protrude from the weaker part of the abdomen, forming a hernia. 7, double hydronephrosis, renal function injury: hyperplasia of the prostate oppresses the urethra, and the bladder needs to contract with force in order to overcome the resistance to urinate out of the body. Over time, the bladder wall muscles will become hypertrophied. If the pressure on the bladder cannot be relieved for a long period of time, the urine remaining in the bladder gradually increases and the pressure in the bladder continues to rise. Eventually the urine in the bladder will return to the ureter and renal pelvis causing hydronephrosis, which in severe cases results in renal impairment or even uremia.