Enlarged prostate enlargement leads to urinary retention, and after surgery, you can usually urinate naturally. Prostatic hyperplasia obstructs the urinary tract and shows symptoms of urinary obstruction, such as weakness of urination, thinning of the urine line and dribbling of urine. In advanced patients with more serious conditions, urinary retention can occur when obstruction is severe due to cold, alcohol consumption, holding urine for too long or infections that prevent urine from being excreted. Surgery removes the part of the gland where the growth squeezes into the urethra. This removal relieves the symptoms of pressure on the urethra, allowing some of the urinary problems to be relieved. A catheter will be inserted after surgery to drain the urine. The catheter will be left in place for 1 to 3 days until the wound has healed and you can urinate on your own. If the symptoms are not relieved after the operation, you should seek medical advice to clarify the cause of the problem and under the guidance of your doctor.