Frozen shoulder, also known as periarthritis of the shoulder joint, is commonly referred to as frozen shoulder and fifty shoulder. It is a chronic and specific inflammation of the shoulder capsule and its surrounding ligaments, tendons and bursae, which is characterized by gradual pain in the shoulder, especially at night, and progressively worsening, with the function of shoulder joint movement being restricted and getting worse, gradually relieving after reaching a certain level, until finally recovering completely. Frozen shoulder is a common condition that is characterized by shoulder joint pain and limited mobility. The disease is more common in women than in men and is more common in manual laborers. If not treated effectively, it may seriously affect the functional activities of the shoulder joint. There may be widespread pressure pain in the shoulder joint that radiates to the neck and elbow, and there may be different degrees of atrophy of the deltoid muscle. Five steps to prevent and treat frozen shoulder: 1. Look up to the sky. Take an upright position, with both hands down and both feet shoulder-width apart, raise your head slowly and look up at the sky, with your eyes fixed on a target for about 15 seconds. 2, massage the neck. Take an upright or sitting position, use both thumbs to press the back side of the neck, first press the middle part, and then press the muscles on both sides, from top to bottom, from bottom to top, repeatedly press and knead 15 times. 3, two eyes tiger eyes. Use your hands and feet to support the ground, so that the body is in the shape of an arch. Then turn your neck back, look left and right, turn left and right 15 times each. The main point is: left to look at the right when the weight of the neck, not just turn the eyes. 4.Shake your head. Shake the head in the order of front, back, left and right. So shake the head for a week, and then shake in the opposite direction. Do it 10 times each on the left and right. 5. Compete with each other for strength. Cross the fingers of both hands and place the palms of the hands behind the neck, push the neck forward with force, while the neck is straightened backwards, with the two forces in opposite directions. At the same time, turn your head around and shake 5 times. Relax, stop for a moment and then redo.