Patients with numbness in the right big toe may be due to extrusion, vascular disease, peripheral nerve compression and other reasons, as follows: first, excessive extrusion: some patients may be overly squeezed here, ischemic conditions, and then numbness symptoms. This type of patients often wear more squeezed shoes, or in the process of sitting or standing, due to poor posture led to the onset of excessive pressure here. Second, vascular lesions: Some patients may have such symptoms due to vascular lesions in the lower extremities, such as atherosclerotic lesions in the arteries of the lower extremities, which may lead to a lack of blood supply to the distal part of the foot, resulting in the symptoms of numbness. Thirdly, compression of peripheral nerves: some patients may develop the disease due to compression of peripheral nerves, for example, patients with lumbar disc herniation may have similar symptoms.