Calcific tendonitis is an aseptic inflammatory condition in which calcium salts are deposited in degenerated tendons, commonly in the rotator cuff tendons of the shoulder joint, causing shoulder pain and limited motion. There are two types: acute and chronic. The acute type has a history of sudden onset of acute pain in the shoulder joint and can wake up at night with pain. It is characterized by fear of movement of the shoulder joint in any direction by holding the elbow. There is obvious redness, swelling and heat at the greater humeral tuberosity, and there is obvious limited pressure pain when lightly pressed. Most of the cases occur during the calcium absorption period. X-rays may show faint foci of calcium deposits in the rotator cuff, mostly in the tendon of the supraspinatus muscle. The chronic type mostly has a history of acute painful episodes in the shoulder joint and is characterized by hardening of the calcium deposited in the rotator cuff. Calcific tendonitis needs to be differentiated from frozen shoulder. Calcific tendonitis is similar to frozen shoulder in that it has a self-limiting course. The difference between the two is mainly reflected in the following aspects: Age of onset and population Frozen shoulder usually occurs in middle-aged people over 40 years old, with a high incidence in those who are engaged in high-intensity physical labor, and little difference between men and women; calcific tendonitis, on the other hand, occurs in women aged 30-50 years old, with a high incidence in housewives, office workers, teachers, etc. The incidence of diabetes is higher. Common symptoms Frozen shoulder pain is generally mild and worsens at night, but the shoulder can still move; calcific tendonitis patients have severe shoulder pain and difficulty lifting the arm. Treatment The initial onset of frozen shoulder is usually treated with medication and physical therapy, and surgery is considered if conservative treatment is ineffective; calcific tendonitis is mainly treated with local ice, non-steroidal anti-inflammatory drugs, local closure, and physical therapy, etc. If the pain does not decrease or if conservative treatment is repeatedly ineffective, incisional surgery or arthroscopy should be performed to remove the deposited calcified foci. Calcific tendonitis can generally be cured by conservative treatment More than 90% of calcific tendonitis will be cured by conservative treatment, often using non-steroidal anti-inflammatory drugs, which can be given by intramuscular injection in the acute stage and can immediately relieve the symptoms. About 5-10% of patients who take medication and rehabilitation are ineffective, surgery should be considered. If calcific tendonitis is not actively treated, it will often result in sequelae such as tendon rupture, bursitis, and degenerative shoulder arthritis. To prevent calcific tendonitis, in addition to reducing shoulder injuries, you should also strengthen the muscle strength training of your shoulder. 4 ways to prevent calcific tendonitis: 1. Don’t overexert your shoulder: Carrying heavy objects often causes inflammation and degeneration of the shoulder rotator muscle group, so it should be avoided. 2, do more stretching activities: usually do more stretching exercises, remember to warm up before exercise, so that the tendons have a certain elasticity toughness, to help avoid injury. 3, at home more hot bath and hot compress: hot bath and hot compress, can relieve excessive tension state of the tendon. 4, do not massage: shoulder muscle key injury, not suitable for massage or massage, so as not to aggravate the injury or inflammation of the shoulder joint.