Numbness of the little finger is usually just a symptom of certain lesions. There are many diseases that cause numbness of the little finger, such as: neurogenic cervical spondylosis, carpal tunnel syndrome, elbow syndrome, diabetes mellitus, etc., in which serious herniation of cervical intervertebral discs or compression by neurogenic tumors in the vertebral canal, etc., may cause paralysis of the body. Neurogenic cervical spondylosis, is due to the herniated intervertebral disc compression of the nerve root, and lead to nerve root edema, shoulder upper limb pain, numbness of the fingers and so on. Usually given, dexamethasone to inhibit the inflammatory response, mannitol to lower blood pressure treatment, methylcobalamin to nourish the nerves. Tumor compression: Neurogenic tumors near the cervical spinal canal commonly compress the nerve roots and cause numbness in the upper limbs, which need early surgical treatment. If the above situation, it is recommended to go to the hospital as soon as possible to find the cause of the disease, targeted treatment, so as not to delay the condition.