 [ Symptoms ] do bedbugs cause anemia [ Disease ] there is little evidence that they can cause anemia a blood disorder in which you do not have enough red blood cells to carry the oxygen required by your body a 2009 case study published in the canadian medical association journal discussed one possible case in a 60 year old man who had been bitten hundreds of times the authors were able to find only one other case in the medical literature and that was dated 1962