The rotator cuff is a group of 4 muscles which helps you to stabilise and shift the shoulder joint. Rotator cuff accidents can vary from shoulder impingement/ tendinitis to partial or full tears. Center on exercises that improve the rotator cuff and encompassing muscles to assist and stabilise the shoulder https://www.theorthopaedicandpainpractice.com/is-my-shoulder-pain-caused-by-a-rotator-cuff-tear/