dr. mark scholz makes the highly charged claim in his book that most prostatectomies in the u.s. are avoidable. - over 50,000 surgeries are done every year. 40,000 of those are unnecessary. those men could either be watched or treated with a much milder treatment. - it's a claim strongly challenged by those at the forefront of prostate cancer research and treatment. by t- i do not agreefront of pwith that statent,earch and i d't belie that that statement is based in scientific fact. - take a deep breath, please. - dr. scholz nonetheless advocates far less aggressive treatment for most patients. - hundreds and now even thousands of men are living with known prostate cancer and undergoing no treatment whatsoever. this is an approach called active surveillance that has become standardized. - johns hopkins has the largest active surveillance group in the country but strictly defines who is eligible. - patients who are candidates for active surveillance at johns hopkins are individuals over 65 years of age who have a diagnosis of the lowest grade of prostate cancer. - mark kleckner chose to have hi