What causes low ferritin and low Vitamin B-12 levels in the blood?
Patient: Hi I recently had a full blood count done at the doctors less than 24 hours I was called back in to repeat the blood test as my blood had abnormal markers low ferritin, vitamin b12 , low blood level I am awaiting second blood results why are my bloods like this and what is the treatment I should also mention that I have been taking iron tablets since April 2016 as ferritin level low then but hasent got better just worse Doctor: hello,  Low vitamin b12 occurs quite commonly due inadequate diet or worm infestation. So you should increase milk and dairy products, meat consumption. Also, need deworming with Albendazole.   Low ferritin is due to iron deficiency, either due to inadequate intake or loss. So need to stop iron supplements for 3 days and get one stool for occult blood testing. If positive then need further investigation to confirm the site of bleeding.