Although the exact pathogenesis of calcific tendinitis has not yet been fully elucidated, it is known that local hypoxia within the tendon and cellular metabolic abnormalities promote the formation of calcium crystals. Repetitive use of the shoulder or specific postures can chronically reduce blood flow to specific areas of the tendon, creating an environment for calcium deposition. The incidence is also high among athletes and occupational groups that use their shoulders extensively (such as hairdressers, painters, and teachers). Confirming the size, location, and shape of the calcification using X-rays and ultrasound is the basis of diagnosis. Korean Medicine Clinic Perspective In Korean medicine, it is believed that a state of energy deficiency caused by overwork reduces the ability to nourish tendons, and that blockages in the circulation of Qi and blood pathways through the arm and shoulder create an environment where sticky waste products accumulate. Another contributing factor is the insufficient nutrient supply to muscles and tendons resulting from a weakened digestive function in delivering nutrients to the area. At Dongjedang, we create an environment for tendon regeneration by directly targeting the calcified lesion with pharmacopuncture under ultrasound guidance, while simultaneously administering herbal medicine to restore Qi and blood circulation.