My doctor & his nurse say my newly diagnosed afib is not harmful. they said i could take metoprolol or not. no blood thinners prescribed. i'm confused?

If no risk for clots: The relative risk for throwing clots (thromboembolism) needs to be considered in all patients with afib. Your relative youth makes clotting less a concern probably making them give you just a rate control med like metoprolol. Should look at the chadsvasc scoring system and make sure no other risks. This included ade, diabeteses, hypertension, prior stroke, female sex, heart failure, as importan.