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Each of those symptoms can occur either alone or with others. Vitamin B 12 is essential for the development of the brain. Its deficiency can cause neurodevelopmental problems which can be partly reversible with early treatment. [27] Only a small subset of dementia cases have been found to be reversible with vitamin B 12 therapy. [28]
Administration of nitrous oxide anesthesia can precipitate subacute combined degeneration in people with subclinical vitamin B 12 deficiency, while chronic nitrous oxide exposure can cause it even in persons with normal B 12 levels. Posterior column dysfunction decreases vibratory sensation and proprioception (joint sense).
Peripheral neuropathy may first be considered when an individual reports symptoms of numbness, tingling, and pain in feet. After ruling out a lesion in the central nervous system as a cause, a diagnosis may be made on the basis of symptoms, laboratory and additional testing, clinical history, and a detailed examination.
24/7 Help. For premium support please call: 800-290-4726 more ways to reach us. Sign in. Mail. 24/7 Help. ... Symptoms “A B12 deficiency can cause physical and neurological symptoms, and ...
Vitamin B12 deficiency symptoms . Vitamin B12 deficiency has a few hallmark symptoms, according to doctors: Lack of energy. Mental fatigue. Nausea, vomiting, or diarrhea. Lack of appetite. Weight loss
Pernicious anemia often presents slowly, and can cause harm insidiously and unnoticeably. Untreated, it can lead to neurological complications, and in serious cases, death. [19] The onset may be vague and slow and the condition can be confused with other conditions, and there may be few to many symptoms without anemia. [20]