Numbness of the tip of the right thumb can be seen in the following diseases. First, cervical spondylosis, if the cervical vertebrae protrudes and compresses the surrounding nerves and blood vessels, it will cause the local blood flow is not smooth, thus causing numbness, at this time, you should go to the hospital for relevant examinations, after a clear diagnosis, symptomatic treatment. Second, neuropathy, due to neurological lesions, such as carpal tunnel syndrome and other diseases, compression of the surrounding tissues, there will also be numbness of the fingertips of the symptoms, after a clear diagnosis can take some methylcobalamin capsules.