Foreign body sensation in the spine of the back may be related to cervical spondylosis, osteophytes, tumors, lumbar strain in the back, etc. It is recommended to go to the hospital for relevant examinations to make a clear diagnosis and then carry out relevant treatments. Foreign body sensation in the spine of the back is also called sensory abnormality, and the general causes include cervical spondylosis, degenerative diseases of the spine, and myofascial diseases. Cervical spondylosis is a degenerative disease of the cervical spine that causes compression of the nerves and blood vessels in the neck, resulting in pain, numbness, and abnormal sensation in the innervated areas of the neck. X-rays, CT scans and MRIs of the cervical spine can assist in the diagnosis. Degenerative diseases of the spine, such as hyperplasia of the tuberosity of the spine, can also cause a foreign body sensation in the back, which can be diagnosed by magnetic resonance imaging. If there is a primary tumor or metastatic tumor in the spine, a foreign body sensation in the back may also occur, which is rare but should not be ignored. In addition to back pain caused by back muscle strain or fascial inflammation, foreign body sensation may also occur, which needs to be clearly diagnosed by a doctor’s physical examination. Foreign body sensation in the back spine may also have other causes, it is recommended to go to the hospital in time, complete the examination to clarify the cause of the disease, and then give targeted treatment or therapy.