When bunion numbness occurs, first of all, it should be clarified whether it is caused by tight shoes, long-term wearing of high heels and other long time squeezing of the foot, which can be replaced by comfortable shoes to reduce the pressure to relieve bunion numbness. Excluding the above factors, consider possible pathological factors, such as common peripheral nerve injury, lumbar spine lesions, etc. 1, peripheral nerve injury: may lead to numbness in the big toe. For example, suffering from peripheral neuritis or the use of chemotherapy drugs, or exposure to toxic drugs, etc., may damage the peripheral nerves, resulting in peripheral neuropathy, resulting in numbness of the big toe; 2, lumbar spine lesions: such as lumbar disc herniation, lumbar isthmus crack, etc., when the nerves related to the lumbar spine are compressed, so that the corresponding innervation area produces numbness symptoms, which may cause numbness of the big toe; 3, diabetes Diabetic patients with poor blood glucose control may cause peripheral neuropathy, which may result in numbness of the big toe or even the entire lower leg; 4, other: stroke, vaso-occlusive vasculitis, etc., may lead to abnormal sensation in the distal limb, manifesting as numbness of the big toe. If the symptoms persist, it is recommended to go to the hospital for examination, for example, you can do the nerve conduction velocity examination and MRI of the lumbar spine, comprehensive patient signs for judgment.