The left little finger numbness needs to be alert to the following diseases: 1, to be alert to cervical spondylosis, especially some long-term ambulatory work is prone to cervical spondylosis, can lead to dural sac and nerve root stimulation, can appear right little finger numbness, can also be accompanied by neck and shoulder pain. 2, clinically also need to be alert to peripheral neuropathy, if the patient has diabetes, long-term alcohol consumption and right little finger contact with toxic substances can lead to If the patient has diabetes, long-term alcohol consumption and exposure to toxic substances in the right little finger can lead to peripheral nerve damage, electromyography should be performed if necessary. 3, for the right little finger numbness, clinically also need to be alert to cerebrovascular disease, especially lacunar infarction of the brain can also appear right little finger numbness, but also accompanied by dizziness, headache and other symptoms, if necessary, CT or nuclear magnetic examination of the head. 4, also need to be alert to local nerve compression, such as carpal tunnel syndrome or elbow tunnel syndrome. Due to the compression of the ulnar nerve, the patient may experience numbness in the right little finger.