The most common cause of arm numbness and bone pain is cervical spondylosis, in cervical spondylosis there is a type of cervical spondylosis called neurogenic cervical spondylosis, if the patient’s cervical 5-6, cervical 6-7 herniated discs, or cervical 5, cervical 6, cervical 7 vertebral body osteophytes, intervertebral joints osteomalacia, hook vertebral joints osteomalacia, ligamentum flavum hypertrophicum, intervertebral foraminal stenosis and other reasons, will irritate and compress the brachial plexus nerves, will be numbness of the arm, the upper arm, Forearm to hand appear bone pain, muscle pain, or numbness of the fingertips and other symptoms. If the numbness reaches the thumb, the cervical 6 nerve is compressed, if it reaches the index middle finger, the cervical 7 nerve is compressed, and if it reaches the ring finger and little finger, the cervical 8 nerve is stimulated and compressed. In short, it is caused by compression of the cervical nerves.