Small Fiber Neuropathy in Pernicious Anemia
Pernicious anemia is known for damaging the spinal cord, but B12 deficiency can also injure small nerve fibers, causing burning, tingling, and nighttime itch that standard nerve testing won’t catch.
Dangers of Pernicious Anemia
PHYSICIAN REFERENCE: Pernicious Anemia
Pernicious anemia is a demyelinating neurological disease. Vitamin B12 malabsorption leads to central and peripheral nerve damage, neurological and psychiatric symptoms that often precede anemia, and recovery limits set by the biology of myelin repair rather than blood test normalization.