2 doctors weighed in:

What are the symptoms of a vitamin B12 deficiency?

2 doctors weighed in
Dr. Heidi Fowler
Psychiatry

In brief: Vit B 12 Deficiency

Lack of Vit B 12 can lead to Hypocobalaminemia.
This can cause a slow degration of the spinal cord & brain. Problems may include: swollen tongue, anemia, sense of numbness & tingling in extremities, weakness, fatigue, problems walking, jaundice, depression, irritability, memory decline, cognitive dulling & eventually mania &/or psychosis.

In brief: Vit B 12 Deficiency

Lack of Vit B 12 can lead to Hypocobalaminemia.
This can cause a slow degration of the spinal cord & brain. Problems may include: swollen tongue, anemia, sense of numbness & tingling in extremities, weakness, fatigue, problems walking, jaundice, depression, irritability, memory decline, cognitive dulling & eventually mania &/or psychosis.
Thank
Dr. Martin Rubenstein
Internal Medicine - Hematology & Oncology

In brief: Yes.

Pernicious anemia is the most common reason for unexpected B12 deficiency.
Lack of B12 can cause both anemia and neurological damage. The latter includes numbness, gait problems, and dementia. Anemia causes weakness. The neurological findings can occur before there is any anemia, or vice versa. The anemia will reverse with treatment. Neurologic changes may not correct.

In brief: Yes.

Pernicious anemia is the most common reason for unexpected B12 deficiency.
Lack of B12 can cause both anemia and neurological damage. The latter includes numbness, gait problems, and dementia. Anemia causes weakness. The neurological findings can occur before there is any anemia, or vice versa. The anemia will reverse with treatment. Neurologic changes may not correct.
Thank
Get help from a real doctor now
Dr. Bennett Machanic
Board Certified, Neurology
51 years in practice
56M people helped
Continue
100,000 doctors available