If the patient has a transient numbness in one finger tip, it may be caused by improper placement of the finger posture, resulting in poor venous return to the upper extremity causing insufficient blood supply, while the finger is pressed for a long time, so that the relevant nerve is compressed, etc., the finger tip numbness symptoms can occur. This kind of situation is more common, by changing the posture, etc., a few minutes can be relieved. However, if you feel numbness in one fingertip for a long time, it may be related to cervical spondylosis, multiple peripheral neuropathy, stroke and other diseases. 1, cervical spondylosis: patients due to cervical disc herniation or cervical spine osteophytes can compress the nerve roots or spinal cord of the cervical spine, early pain in the neck and shoulder, mostly discharge-like numbness, while radiating to one upper limb, causing numbness in one fingertip. In addition to the above symptoms, patients can also feel the affected side of the upper limb heavy, grip strength loss, finger movement inflexibility, etc. This disease is common in long-term ambulatory work, poor sleep position and middle-aged and elderly patients; 2, multiple peripheral neuropathy: this disease can be induced by genetics, poisoning, nutritional deficiencies, metabolic disorders, inflammation, cancer and infection and other causes. Initially, the patient may experience pain and numbness in the fingers or toes, accompanied by sensory abnormalities such as insect crawling, pins and needles, and electric shock, etc. The typical sensory disorder is glove or glove-like abnormal sensory distribution. Patients may experience numbness and weakness in one limb, which may radiate to the tips of the fingers and cause numbness, and they may also experience dizziness, nausea, vomiting, dysarthria, facial palsy, and in severe cases, impaired consciousness. Patients with coronary heart disease, hypertension, arteriosclerosis and other underlying diseases should go to the hospital for head MRI and other related examinations to determine whether there is an organic lesion. In addition to the above-mentioned common conditions, tenosynovitis, lacunar cerebral infarction and other diseases can also appear the symptoms of numbness in the tip of one finger, but such cases are relatively rare, so patients need to deal with symptoms according to their own concomitant symptoms, if you can not clearly determine the relevant medical examination to clarify the cause.