At present, shoulder pain has a high incidence, and many middle-aged and elderly patients are troubled by shoulder pain. Due to the lack of understanding of shoulder pain diagnosis, the treatment means are complicated and the efficacy is mostly inaccurate. Ningbo Ninth Hospital Shoulder and Elbow Surgery Department (China-Korea NEON Shoulder and Elbow Surgery Clinic and Training Center) has broken through the professional boundary and systematically carried out high-frequency ultrasound-guided shoulder joint pain injection treatment technology first in China, which has achieved good clinical efficacy. This technique has the advantages of light pain, high accuracy, low cost, and no radiation damage, etc. It can immediately relieve pain after injection and cure most shoulder pain diseases without surgery. In the past, the technique of unarmed shoulder joint pain injection has been used for many years, but due to the complex structure of the shoulder joint, the difficulty in locating the pain-causing lesion and the positioning of the injection, the efficacy of unarmed blind injection is poor and there are many complications, such as post-injection pain, accidental injection into normal tissues and vascular nerve injury, which seriously affect the clinical treatment effect. It is more accurate and easier to perform the operation with the help of ultrasound equipment to determine the puncture site. Ultrasound-guided puncture has the advantages of real-time operation, low cost, no radiological damage, and the ability to obtain multi-site images, and has recently been widely used in the diagnosis and treatment of bone and joint diseases. High-frequency ultrasound-guided shoulder joint injection therapy can directly inject drugs into the lesion under real-time ultrasound image monitoring, with high injection accuracy and immediate effect, which can cure most shoulder pain without surgery. It has been widely used in Europe, America, Japan and Korea, and has become an important tool in the treatment of shoulder pain. In China, because most clinical specialists do not have knowledge of ultrasound imaging, and ultrasound physicians do not have clinical experience in diagnosis and treatment, the development of this technology is limited. The Department of Shoulder and Elbow Surgery of the Department of Orthopedics of Ningbo Ninth Hospital (China-Korea NEON Shoulder and Elbow Surgery Training Center) is a department specialized in the diagnosis and treatment of shoulder and elbow joint diseases. The department systematically uses exercise therapy, drug therapy, ultrasonic interventional injection therapy, arthroscopic technology and joint replacement technology to treat different degrees of shoulder and elbow joint disorders. The department has cooperated with NEON International Shoulder and Elbow Surgery Hospital and the Shoulder and Elbow Surgery Center of Konkuk University Hospital in Korea for a long time, and has sent its staff to Korea for many times to study ultrasound interventional diagnosis and injection technology, and has completed more than 2,000 ultrasound interventional injections with good clinical efficacy. Ultrasound-guided shoulder joint injection technique indications: treatment of pain in and around the shoulder joint caused by various reasons, such as: frozen shoulder (shoulder stiffness), rotator cuff injury, biceps tendonitis, acromioclavicular arthritis, humeral glenoid arthritis, rheumatoid arthritis, suprascapular nerve entrapment and shoulder joint sports injury, etc.