Various: In women, menstruation is a common cause. In people >=50, we worry about bleeding from colon polyps which can become cancerous if ignored.Anemia occurs w blood loss, bone marrow not making enough red blood cells (marrow problem or deficiency in iron or vitamin B12 or folate), red cells bursting in the bloodstream from a variety of causes (hemolytic anemia), sequestration in spleen; broad subject.
Answered 6/24/2020
6.1k views
Too many to list: Agree with Dr. P. You may visit this site for more information: https://www.mayoclinic.org/diseases-conditions/anemia/symptoms-causes/syc-20351360
Answered 10/27/2018
257 views
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