Numbness of the two big toes may be caused by localized fasciitis of the lower limbs, or lumbar spine lesions, osteoarthritis of the lower limbs affecting the sensory nerves of the toes, or peripheral neuritis caused by diabetes mellitus and so on.
Fasciitis or tenosynovitis in the ankle may compress the sensory nerve of the big toe and cause numbness. In this case, there are symptoms such as soreness and inflexibility of joint movement in the localized area of the lesion.
Herniated discs or osteoarthritis of the lumbar spine may also compress the sensory nerves of the lower limbs, causing numbness, pain and other sensory abnormalities, and may be accompanied by weakness and other signs of impaired motor function.
Typical manifestations of peripheral neuritis are numbness, ankylosis and pain in the distal extremities of the hands and feet. Common causes are diabetic peripheral neuropathy, vitamin B deficiency, and other nutritional deficiencies. Rare causes include heavy metal poisoning such as lead and mercury, and side effects of medications.
Patients with symptoms of numbness in both big toes that are not relieved for a long time are advised to seek prompt medical attention to identify the cause and then under the guidance of the doctor to carry out targeted treatment.