Tingling at the back of the shoulder is considered to be caused by fasciitis, rotator cuff injury, arthritis and other diseases. 1. Fasciitis: Fasciitis is a kind of aseptic inflammation of fascia, the cause of which is mostly related to factors such as strain, moisture and immunity, and it can occur in the neck, shoulder and lumbar back, with localized symptoms such as pain and muscle spasm. 2. Rotator cuff injury: rotator cuff injury is mainly caused by trauma or repetitive exercise, mostly seen in the shoulder joint repeated activities of the laborers, patients will have neck and shoulder pain, shoulder joint weakness, difficulty in movement and other symptoms, which will lead to tingling at the back of the shoulder. 3. Arthritis: mostly related to degenerative diseases and autoimmune factors, when inflammation occurs in the shoulder joint, patients will experience symptoms such as joint pain, swelling, stiffness and restricted movement. There are more causes of tingling at the back of the shoulder, and patients are advised to seek medical examination for a clear diagnosis. Daily rest is needed to avoid overwork to avoid aggravation of symptoms.