What should you ask your doctor before agreeing to a test or treatment?

Four questions cover most of the ground and are endorsed in various forms by patient safety organizations. What are my options, including doing nothing for now. What are the benefits and harms of each, in numbers rather than adjectives. How likely are those outcomes for someone like me. And what happens if we wait and watch. That last one matters disproportionately because many conditions are self-limiting or slow-moving, and the medical default toward action is well documented, with overtesting and overtreatment recognized as significant problems by the profession itself rather than only by critics.

For any proposed test, one additional question is unusually clarifying: will the result change what we do. A test whose outcome leads to the same next step regardless of the answer is a test worth questioning, and it can start a cascade, since incidental findings on scans frequently lead to further tests, biopsies, and anxiety about things that would never have caused harm. The Choosing Wisely initiative, developed by medical specialty societies, publishes specific lists of tests and procedures that are commonly ordered without benefit, which is a useful reference precisely because it comes from within the specialties rather than outside them.

Two practical additions. Ask about cost and coverage before agreeing, since patients are entitled to good faith estimates in many circumstances and prices for imaging and procedures vary enormously between facilities for identical services. And bring someone to appointments where significant decisions will be made, or ask permission to record, because retention of medical information delivered in a stressful appointment is poor and a second listener catches what you miss. Asking for time to consider a non-urgent decision is always acceptable, and a physician who resists a reasonable request for a second opinion has told you something worth knowing.