The causes of numbness in the left foot are mostly seen in peripheral neuropathy, lumbar disc herniation, lower extremity venous thrombosis and so on.
1. Herniated lumbar intervertebral disc: the herniated intervertebral disc compresses the local nerve roots and affects the nerves of the lower limbs, resulting in numbness and pain in the feet.
2. Lower extremity venous thrombosis: for example, the venous blood return in the lower extremity is obstructed, which may be related to factors such as venous embolism or thrombosis, and can also cause numbness in one side of the limb, which is often accompanied by pain, swelling, and skin pallor, and so on.
3. Peripheral neuropathy: this is mostly seen in the complications of diabetes mellitus, due to poor control of blood sugar for a long time caused by peripheral vasculopathy, the patient will show numbness of the limbs, abnormal sensory symptoms.
The cause of numbness in the left foot is very complex, it is recommended to seek medical advice in a timely manner, under the guidance of the doctor targeted treatment.