The performance of numbness in a man’s right hand may indicate the presence of cervical spondylosis, cerebral infarction, carpal tunnel syndrome, peripheral neuritis and other diseases. 1. Cervical spondylosis: prolonged bowing of the head will lead to degeneration of the cervical intervertebral disc structure, which will compress the surrounding nerves or spinal cord, affecting local blood circulation and causing numbness and pain in the right hand. 2. Cerebral infarction: after infarction foci appear in the left side of the brain tissue, it will affect the blood circulation of the brain tissue, which in turn will damage the surrounding nerve function, making the right hand numbness, weakness and other symptoms. 3. Carpal Tunnel Syndrome: Laborers who often use their wrists are subjected to long-term pressure on their wrists due to labor, which can cause the median nerve in the carpal tunnel to be squeezed, resulting in symptoms such as numbness and weakness of the wrist. 4. Peripheral neuritis: when the right hand is subjected to external pressure or impact, bacteria and other pathogenic microbial infections and other factors, will cause the right hand of the nerve oozing and other inflammatory reactions, which will cause local numbness. Therefore, when a man’s right hand is numb, he should go to the hospital in time to get a clear diagnosis.