Causes of numbness at the top of the big toe include lumbar spine disease, peripheral neuropathy, frostbite and so on.
1. Lumbar spine diseases: including lumbar radiculopathy, such as lumbar disc herniation, sacroiliac arthropathy, lumbar spinal stenosis, etc., which can present with symptoms such as numbness at the top of the big toe. Combined with lumbar spine CT or MRI and other tests to assist diagnosis.
2. Peripheral neuropathy: including diabetes, drug intoxication, etc., may cause peripheral nerve damage, which may be manifested as numbness at the top of the big toe. Combined with the history of the disease, nerve electrophysiology and other tests to assist in the diagnosis.
3. Frostbite: Numbness at the top of the big toe can occur when frostbite occurs in the toes due to the cold temperature of the external environment and improper insulation.
There may be other causes of numbness on the top of the big toe, so it is recommended that the patient seek medical advice as soon as possible, and under the guidance of a professional physician, the patient’s condition, signs and auxiliary examinations to identify the cause and give targeted treatment.