Is it always cancer if urologist finds a lump on prostate?

No, a lump on the prostate found by a urologist is not always indicative of cancer. It can also be caused by benign conditions such as benign prostatic hyperplasia (BPH) or prostatitis. Further diagnostic tests, including biopsies or imaging, are necessary to determine the nature of the lump. Therefore, a thorough evaluation is essential for an accurate diagnosis.