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A 43-year-old female asked about a 16-year-old female:

Low ferritin what causes it?

1 doctor answer1 doctor weighed in
Dr. Stephen Scholand
Infectious Disease 23 years experience
Iron deficiency: Ferritin is the 'storage' form or 'warehouse' of iron. If you have been told your ferritin is low, it is probably because either A) you are not eating enough iron in your diet, or B) you have some blood losses (heavy periods). Another choice might be C) disease processes with malnutrition, inadequate absorption, or utilization. You should follow through with your doctor to get this problem fixed.

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A 42-year-old female asked:

Can low ferritin cause hypothyroidism?

2 doctor answers2 doctors weighed in
Dr. Susan Wingo
Endocrinology 33 years experience
No: Low ferritin suggests iron-deficiency, which can have some of the same symptoms as low thyroid. But neither iron levels or ferritin would directly affect the thyroid. Hypothyroidism is usually caused by autoimmunity, where the immune system makes antibodies targeting one's own proteins. If those antibodies target thyroid proteins, hypothyroidism can result.
Dr. Susan Wingo
Dr. Susan Wingo commented
Endocrinology 33 years experience
Provided original answer
TIP: If you do have both iron-deficiency and hypothyroidism, be sure to take iron pills at 3-4 hours apart from the thyroid pills.
Nov 4, 2012

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Last updated Feb 6, 2020

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