Frozen shoulder refers to frozen shoulder. How long does frozen shoulder last without pain is related to the specific condition, individual physique and rehabilitation exercises, etc. Generally, the pain will last for 2 to 9 months and then gradually relieve, and some patients’ pain will last longer. Frozen shoulder is an unexplained, self-limited, aseptic inflammation of the soft tissues around the shoulder joint, most common in people around 50 years old, so it is also known as fifty shoulders. It is characterized by pain and limitation of movement in the shoulder joint, which worsens at night and gradually subsides when it reaches a certain level. Frozen shoulder, if not effectively treated, may seriously affect the functional activities of the shoulder joint, and different degrees of atrophy of the deltoid muscle may also occur, so early intervention should be carried out to relieve clinical symptoms and pain as soon as possible. In the acute stage, the patient should be braked and rested, with anti-inflammatory and pain relief as the main treatment. After the acute stage, the patient should carry out active rehabilitation and exercise, and carry out daily activities such as flexion, extension, rotation and abduction of the shoulder joint, etc. After treatment, the pain can be relieved and the clinical symptoms can be gradually alleviated for 2 to 9 months. In some patients, the condition is more serious and the pain may last for about 1 to 2 years. If conservative treatment is ineffective, surgical treatment is also an option.