The numbness of the thumb of the foot may be caused by physiological factors, and may also be related to lumbar disc herniation, cerebral infarction, diabetic peripheral neuropathy and so on.
1. Physiological factors: the bunion of the foot is squeezed for a long time, such as wearing shoes that are too tight or cold, etc. Numbness can occur, which belongs to the physiological situation, and can be relieved by lifting the squeezing and keeping warm and other measures.
2. Lumbar disc herniation: lumbar fibrous ring rupture will cause lumbar disc herniation, may make the nerve root and dural sac compression, the sensory function of the innervated area may be impaired, so there may be the symptom of numbness of the little finger.
3. Cerebral infarction: generally because of atherosclerosis, hypertension and other blood circulation disorders in the brain, resulting in localized ischemia and hypoxia of brain tissues, and the corresponding areas of neurological dysfunction, which may show the symptoms of numbness in the little finger of the foot.
4. Diabetic peripheral neuropathy: If you suffer from diabetes, it may cause diabetic peripheral neuropathy, which may cause numbness in the bunions when it involves the feet.
Numbness of the feet and thumbs symptoms, except physiological factors should go to the hospital in a timely manner to check, identify the cause of treatment under the guidance of the doctor.