Editing Anemia (section)

===Impaired production===
* Disturbance of proliferation and differentiation of stem cells
** [[Pure red cell aplasia]]<ref name=Robbins12-1>Table 12-1 in: {{cite book | last1 = Mitchell | first1 = Richard Sheppard | last2 = Kumar | first2 = Vinay | last3 = Abbas | first3 =  Abul K. | last4 = Fausto | first4 = Nelson | title = Robbins Basic Pathology | publisher = Saunders | location=Philadelphia |year= 2007|isbn=978-1-4160-2973-1 | edition = 8th}}</ref>
** [[Aplastic anemia]]<ref name=Robbins12-1/> affects all kinds of [[blood cell]]s. [[Fanconi anemia]] is a hereditary disorder or defect featuring aplastic anemia and various other abnormalities.
** Anemia of [[kidney failure]]<ref name=Robbins12-1/> due to insufficient production of the [[hormone]] [[erythropoietin]]
** Anemia of [[endocrine disease]]<ref>{{cite book|last1=Gregg|first1=XT|last2=Prchal|first2=JT|title=Williams Hermatology|date=2007|publisher=McGraw-Hill|chapter=Anemia of Endocrine Disorders}}</ref>
* Disturbance of proliferation and maturation of [[erythroblast]]s
** [[Pernicious anemia]]<ref name=Robbins12-1/> is a form of [[megaloblastic anemia]] due to [[vitamin B12 deficiency|vitamin B<sub>12</sub> deficiency]] dependent on impaired absorption of [[Vitamin B12|vitamin B<sub>12</sub>]]. Lack of dietary B<sub>12</sub> causes non-pernicious megaloblastic anemia.
** Anemia of [[folic acid deficiency|folate deficiency]],<ref name=Robbins12-1/> as with vitamin B<sub>12</sub>, causes [[megaloblastic anemia]]
** [[Anemia of prematurity]], by diminished erythropoietin response to declining [[hematocrit]] levels, combined with blood loss from laboratory testing, generally occurs in premature infants at two to six weeks of age.
** Iron-deficiency anemia, resulting in deficient heme synthesis<ref name=Robbins12-1/>
** [[Thalassemia]]s, causing deficient globin synthesis<ref name=Robbins12-1/>
** [[Congenital dyserythropoietic anemia]]s, causing ineffective erythropoiesis
** Anemia of kidney failure<ref name=Robbins12-1/> (also causing stem cell dysfunction)
* Other mechanisms of impaired RBC production
** [[Myelophthisic anemia]]<ref name=Robbins12-1/> or [[myelophthisis]] is a severe type of anemia resulting from the replacement of bone marrow by other materials, such as malignant tumors, fibrosis, or granulomas.
** [[Myelodysplastic syndrome]]<ref name=Robbins12-1/>
** anemia of [[chronic inflammation]]<ref name=Robbins12-1/>
** Leukoerythroblastic anemia is caused by space-occupying lesions in the [[bone marrow]] that prevent normal production of blood cells.<ref>{{cite web|url=https://www.dictionary.com/browse/leukoerythroblastosis|title=the definition of leukoerythroblastosis|website=www.dictionary.com|language=en|access-date=2018-12-02|archive-date=2 December 2018|archive-url=https://web.archive.org/web/20181202070610/https://www.dictionary.com/browse/leukoerythroblastosis|url-status=dead}}</ref>