Why do dr check your ferritin levels and vitamins if your hemaglobin is down a bit is just to see if your health ok?

Anemia: Low hemoglobin ( anemia) can signal significant underlying disease. Iron deficiency is a non menstruating female is a particular concern , since it may reflect occult bleeding in the bowel. Typically, we also check B12 and folate (folic acid) levels in a person with anemia to uncover vitamin deficiencies and pernicious anemia.

Anemia...: There are many causes of anemia and your physician will do lab work to try to determine the cause. Ferritin is part of the work up to rule in/out iron deficiency anemia.

Ferritin and vit: For anemia work-up. Sometimes, these numbers can go down before anemia occurs. Ferritin reflect body iron store. It is also a reactive protein. Restless leg syndrome sometime also associated with iron deficiency. Vit B12 deficiency can be associated with neuropathy or dementia without anemia.