Numbness of the right big toe may be caused by physiological reasons, nerve compression diseases, peripheral neuropathy and lower limb vascular diseases and other pathological reasons. 1. Physiological reasons: patients who walk for a long time due to ill-fitting shoes or long-time wearing of high-heeled shoes may experience numbness of the right big toe, which can be relieved by resting in most cases, due to the local blood circulation obstacle caused by squeezing the surrounding tissues. 2. Nerve compression diseases: such as lumbar intervertebral disc herniation, pyriformis syndrome compression of the sciatic nerve or knee joint lesions caused by peroneal nerve compression, patients may experience numbness of the right big toe. 3. Peripheral neuropathy: such as diabetic peripheral neuropathy, infection, tumor, trauma-induced peripheral neuropathy, patients may experience numbness of the right big toe. 4. Lower extremity vascular diseases: such as lower extremity arterial embolism, lower extremity varicose veins, venous thrombosis and other diseases, can cause poor blood circulation in the lower extremities, which can cause numbness of the right big toe. Numbness of the right big toe may also have other causes, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, and then give targeted treatment or treatment.