The numbness and pain in the right arm when tilting the head may be related to cervical disc herniation, cervical tuberculosis, cervical fracture and other reasons. 1. Herniated cervical intervertebral disc: If you suffer from herniated cervical intervertebral disc, it can lead to the compression of the nerve root of the upper limb, and when you tilt your head up, the compression will be aggravated, which may cause numbness and pain in the arm. 2. Cervical spine tuberculosis: when suffering from cervical spine tuberculosis, due to the invasion of tuberculosis bacillus, it can compress, stimulate and damage the nerve root of the upper limb, which may cause numbness and pain in the right arm when tilting the head. 3. Cervical spine fracture: If cervical spine fracture occurs, when involving the cervical spinal cord and upper limb nerve roots, it can show the phenomenon of right arm numbness and pain when tilting the head. It is recommended to go to the regular hospital in time, to clarify the cause of the disease, under the guidance of the doctor for standardized treatment, so as not to delay the condition to bring adverse effects on the body.