Head down back pain may be caused by fasciitis, cervical spondylosis, supraspinous ligamentitis and other reasons. 1. Fasciitis: When the patient suffers from fasciitis, when the patient carries out the action of lowering the head, it may pull the local fascia, which leads to the symptom of back pain when the head is lowered. 2. Cervical spondylosis: when suffering from cervical spondylosis, it will cause degenerative changes and abnormal proliferation of the spine, which may compress or stimulate the nerves of the back when carrying out head-down movements, leading to the symptom of back pain when the head is lowered. 3. Supraspinous ligamentitis: This is the repeated friction of supraspinous ligament due to long time working at desk, playing cell phone with head down or frequent bending action, causing local aseptic inflammation, which will stimulate the local nerves when the head is lowered, resulting in the symptom of back pain when the head is lowered. Due to the cause of head down back pain causes more, the specific situation should also go to the hospital in time for examination and diagnosis, under the guidance of professional physicians to carry out targeted treatment, to avoid the impact on the body’s health.