Can Vitamin B12 Deficiency Cause Fever?

Vitamin B12

Vitamin B12 deficiency itself does not typically cause a fever. However, in some cases, the underlying conditions or complications associated with severe and untreated vitamin B12 deficiency might lead to symptoms that include fever.

Pernicious anemia, one of the consequences of severe vitamin B12 deficiency, results from the body’s inability to properly absorb vitamin B12 from food. This condition can lead to a decrease in red blood cells, which might manifest with symptoms like fatigue, weakness, pale skin, and sometimes fever.

Additionally, severe and untreated cases of vitamin B12 deficiency can weaken the immune system over time. A compromised immune system may increase susceptibility to infections, which could result in fever as the body’s natural response to fight off the infection.

Fever is a common symptom of various infections or inflammatory conditions, and while vitamin B12 deficiency itself doesn’t directly cause fever, the associated health complications arising from severe deficiency might contribute to symptoms that include fever.

If you’re experiencing unexplained fever or suspect a vitamin B12 deficiency, it’s essential to consult a healthcare professional for proper evaluation and diagnosis. A healthcare provider can conduct tests to determine the cause of your symptoms and recommend appropriate treatment or supplementation if a vitamin B12 deficiency or another underlying condition is identified.

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