Vitamin B12 or folate deficiency anaemia can cause a wide range of symptoms. These usually develop gradually at first, and can worsen if the condition goes untreated.
You should see your GP if you think you may have a vitamin B12 or folate deficiency. These conditions can often be diagnosed based on your symptoms and the results of a blood test. Read more about diagnosing vitamin B12 or folate deficiency anaemia.
It's important for vitamin B12 or folate deficiency anaemia to be diagnosed and treated as soon as possible because, although many of the symptoms will improve with treatment, some problems caused by the condition can be irreversible.