PT - JOURNAL ARTICLE AU - Althomali, Sarah Ali AU - Alzubaidi, Lamya Mohammed AU - Alkhaldi, Dhelal Musleh TI - Severe iron deficiency anaemia associated with heavy lice infestation in a young woman AID - 10.1136/bcr-2015-212207 DP - 2015 Oct 22 TA - BMJ Case Reports PG - bcr2015212207 VI - 2015 4099 - http://casereports.bmj.com/content/2015/bcr-2015-212207.short 4100 - http://casereports.bmj.com/content/2015/bcr-2015-212207.full AB - Lice feed on human blood, and heavy and chronic lice infestation can lead to chronic blood loss with resultant iron deficiency anaemia. Although no definite relationship between lice infestation and iron deficiency anaemia has been described, the concurrent presence of these two conditions has been reported in children and adults, as well as in cattle. We present a case of a young woman with severe iron deficiency anaemia that could not be explained by the known causes of iron deficiency anaemia. However, the patient was found to have heavy and chronic head lice infestation.