Self-testing for frozen shoulder Put your elbows close to your waist, bend your elbows 90 degrees, turn your thumbs up towards the sky and make a fist with the remaining four fingers; while keeping your elbows close to your waist and not moving, bend your elbows 90 degrees, separate your hands to both sides and make the distance between your hands bigger. It is like doing the exercise of a tensioner, only the elbows can not move. If you cannot do this test by yourself, you can hold the above position by yourself and ask a family member to help you check whether the affected hand can be moved outward and pulled apart. If the hand on the painful side of the shoulder can move outward, then most of them are not “frozen shoulder”; if the hand on the painful side of the shoulder moves outward to a significantly lower degree than the healthy side, then most of them are “frozen shoulder”, which is commonly known as “frozen shoulder”.