Shoulder periarthritis is referred to as frozen shoulder, fifty shoulder, and adhesive capsulitis. It is one of the most common clinical shoulder pain conditions. It is a group of diseases caused by soft tissue lesions around the shoulder joint that cause pain and impaired movement of the shoulder joint. The cause of periarthritis is not fully understood, but it may be related to soft tissue degeneration around the shoulder joint, such as subacromial bursitis, supraspinatus tendonitis, and biceps longus tenosynovitis. Some people also believe that it may be related to some systemic diseases (such as coronary heart disease, pneumonia, cholecystitis, etc.), upper limb fractures, cervical spondylosis, etc., which directly or indirectly cause shoulder pain, making the upper limb fixed for a long time and limiting the function of the shoulder joint. Shoulder periarthritis starts slowly, and patients’ clinical manifestations are gradually increasing shoulder pain and shoulder joint movement disorders. The pain is mainly located in the anterolateral aspect of the shoulder joint, and the nature of the pain is a deep, dull pain, which sometimes spreads to the elbow, hand, and scapula, and the pain can increase at night, affecting sleep in severe cases. The pain is often aggravated by daily activities such as combing hair, dressing and undressing. If the pain persists for a long time, it can also cause local muscle spasm, metabolic disorders and muscle atrophy. Periarthritis has a tendency to heal itself, i.e., the condition stops progressing to a certain degree, and pain is gradually relieved and function is gradually restored. However, there are a few patients who do not heal on their own without treatment. Severe cases of periarthritis are referred to as frozen shoulder, fifty shoulder, and adhesive capsulitis. It is one of the most common clinical shoulder pains. It is a group of diseases that cause shoulder pain and movement disorders due to soft tissue lesions around the shoulder joint. The cause of periarthritis is not fully understood, but it may be related to soft tissue degeneration around the shoulder joint, such as subacromial bursitis, supraspinatus tendonitis, and biceps longus tenosynovitis. Some people also believe that it may be related to some systemic diseases (such as coronary heart disease, pneumonia, cholecystitis, etc.), upper limb fractures, cervical spondylosis, etc., which directly or indirectly cause shoulder pain, making the upper limb fixed for a long time and limiting the function of the shoulder joint. Shoulder periarthritis starts slowly, and patients’ clinical manifestations are gradually increasing shoulder pain and shoulder joint movement disorders. The pain is mainly located in the anterolateral aspect of the shoulder joint, and the nature of the pain is a deep, dull pain, which sometimes spreads to the elbow, hand, and scapula, and the pain can increase at night, affecting sleep in severe cases. The pain is often aggravated by daily activities such as combing hair, dressing and undressing. If the pain persists for a long time, it can also cause local muscle spasm, metabolic disorders and muscle atrophy. Periarthritis has a tendency to heal itself, i.e., the condition stops progressing to a certain degree, and pain is gradually relieved and function is gradually restored. However, there are a few patients who do not heal on their own without treatment. In severe cases, the affected shoulder cannot be lifted and it is difficult to eat and hold food. The goal of treatment for periarthritis is to relieve pain, relieve muscle spasm and restore joint function. In the treatment, we should look for the cause of the disease as much as possible, so that we can have a clear idea of what to do. The pain of the affected shoulder can often be reduced by local insulation, massage and hot compresses. For those with severe shoulder pain, shoulder joint braking measures can be used. Analgesic and sedative drugs can often reduce the pain, such as ibuprofen, kefir, and mobic acid, and Chinese herbs can also be used to relieve tendons, disperse cold, and activate blood. The shoulder joint is mainly innervated by the axillary nerve and the suprascapular nerve, which govern the movement of the scapular muscles. Because of the dense distribution of autonomic nerve fibers around the shoulder joint, painful stimulation often causes reflex local blood circulation disorders, thus forming a vicious cycle of pain. Nerve block therapy can block the relevant innervated nerves to interrupt this vicious cycle, improve local blood flow, relax spastic muscles, eliminate local inflammation, and promote tissue metabolism and joint function recovery. Single or compound nerve blocks are often used clinically: 1. Axillary nerve block For patients with deep diffuse pressure pain in the lower posterior part of the shoulder joint, deltoid muscle belly and significant pressure pain in the quadrilateral foramen area. 2. Suprascapular nerve block This is a commonly used nerve block for the treatment of periarthritis of the shoulder. It is suitable for patients with widespread shoulder pain and pressure pain at the site of the suprascapular nerve. 3.Local pain point block Accurate localization of the pain point and puncture is an important part in determining the effectiveness of treatment. 4.Stellate ganglion block It is suitable for patients with unilateral periarthritis of the shoulder whose condition is stubborn or caused by trauma. Early planetary ganglion block can play a role in preventing reflex sympathetic dystrophy. It can also promote blood circulation in the neck, shoulder and upper extremity, improve periapical nutrition and eliminate periapical inflammation. In addition, a good functional exercise method is shoulder joint “circling” exercise. The method is: the patient bends slightly, ties a weight of about 1~2kg to the affected wrist, relaxes the shoulder and upper arm, and does circling movements with the shoulder joint as the central axis. This can be done 3 times a day, allowing the patient to self-adjust the exercise time according to their different conditions. The shoulder cannot be lifted and it is difficult to eat and hold food. The treatment of periarthritis of the shoulder is aimed at analgesia, release of muscle spasm and restoration of joint function. The cause of the disease should be searched for as much as possible during the treatment in order to be well informed and targeted. The pain of the affected shoulder can often be reduced by local insulation, massage and hot compresses. For those with severe shoulder pain, shoulder joint braking measures can be used. Analgesic and sedative drugs can often reduce the pain, such as ibuprofen, kefir, and mobic acid, and Chinese herbs can also be used to relieve tendons, disperse cold, and activate blood. The shoulder joint is mainly innervated by the axillary nerve and the suprascapular nerve, which govern the movement of the scapular muscles. Because of the dense distribution of autonomic nerve fibers around the shoulder joint, painful stimulation often causes reflex local blood circulation disorders, thus forming a vicious cycle of pain. Nerve block therapy can block the relevant innervated nerves to interrupt this vicious cycle, improve local blood flow, relax spastic muscles, eliminate local inflammation, and promote tissue metabolism and joint function recovery. Single or compound nerve blocks are often used clinically: 1. Axillary nerve block For patients with deep diffuse pressure pain in the lower posterior part of the shoulder joint, deltoid muscle belly and significant pressure pain in the quadrilateral foramen area. 2. Suprascapular nerve block This is a commonly used nerve block for the treatment of periarthritis of the shoulder. It is suitable for patients with widespread shoulder pain and pressure pain at the site of the suprascapular nerve. 3.Local pain point block Accurate localization of the pain point and puncture is an important part in determining the effectiveness of treatment. 4.Stellate ganglion block It is suitable for patients with unilateral periarthritis of the shoulder whose condition is stubborn or caused by trauma. Early planetary ganglion block can play a role in preventing reflex sympathetic dystrophy. It can also promote blood circulation in the neck, shoulder and upper extremity, improve periapical nutrition and eliminate periapical inflammation. In addition, a good functional exercise method is shoulder joint “circling” exercise. The method is: the patient bends slightly, ties a weight of about 1~2kg to the affected wrist, relaxes the shoulder and upper arm, and does circling movements with the shoulder joint as the central axis. The exercise can be done 3 times a day and the patient can adjust the exercise time according to the patient’s condition.