Why Do Some Shots Make Your Arm Hurt So Much? Channel: SciShow358K views • 18/04/2018Related VideosMayo Clinic Minute - Why is your arm sore after a flu shot?Why Do I Get A Sore Arm After A Flu Shot? - Influenza Relief GuideWhy does your arm hurt after the COVID-19 vaccine?5 Easy Exercises To Solve Your Vaccine Arm Soreness