As such there may be many causes for the low values and depending on the symptoms as well as finding of the physical examination and other investigation colonoscopy and endoscopy may become the recommended investigations that need to be done as soon as possible.
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Low ferritin means that there is a deficiency of iron and this could be due to many causes and not necessarily an indication for malignancy.
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This is most likely due to the results of the investigations along with the history and physical examination. Also as a screening test.
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You are having iron deficiency and are losing iron therefore these investigations to find out the possible cause.
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