There are many causes of numbness in the bunion, such as prolonged standing or wearing inappropriate shoes, as well as flat feet combined with bunions, where the bunion is squeezed for a long time, resulting in numbness due to poor blood circulation. When there is trauma to the big toe, repeated wear and tear on the big toe can easily cause swelling and numbness, but it can be treated with simple topical pain medication. If the numbness lasts too long, it is common and may be caused by the following diseases: 1, peripheral nerve disease: common in multiple peripheral neuritis, diabetic foot, Green-Barre syndrome, can cause abnormal sensation in the big toe, such as pins and needles-like or ant-like tenderness, numbness, etc.. Mostly caused by poisoning, malnutrition or metabolic diseases, it is recommended that patients be treated according to different causes; 2, lumbar and cervical spine diseases: lumbar discs or cervical disc herniation, as well as lumbar spine deformities, etc., may compress the nerve roots, resulting in sensory impairment of the lower extremities, involving the big toe with numbness and weakness; 3, cerebrovascular diseases: blockage or rupture and bleeding of blood vessels in the brain, etc., will affect the surrounding 3, cerebrovascular disease: blockage or rupture and bleeding of blood vessels in the brain can affect the surrounding brain tissue or nerves in the brain, which may then spread to the big toe, resulting in numbness. Patients may experience abnormal movement of the lower extremities or even hemiparesis. In addition, myelitis, tumors in the spinal cord or skull, and multiple sclerosis may cause numbness in the bunions. If the numbness in the big toe persists and is accompanied by other uncomfortable symptoms, it is recommended that the patient seek prompt medical attention.