It is very common for the prostate to get bigger with age. This is called benign prostatic hyperplasia (BPH): a benign growth, not cancer. The size itself is not the issue. As it grows, the prostate can narrow the channel that urine passes through and cause symptoms that affect your daily life and your sleep.
The good news is that there is treatment for every situation, from medication to minimally invasive laser surgery, which has now replaced conventional surgery in most cases.
As it grows, the prostate squeezes the urethra, which is why passing urine becomes difficult.