If there is an amount in both boxes 6 and 11, for a tax-exempt obligation that. is a covered security acquired on or after January 1, 2017, and issued with OID, the amount in box 6 shows the amount of acquisition premium amortization for. the year that reduces the amount of your tax-exempt OID for the year.
Excessive blood loss. 1  Blood loss from the gastrointestinal (GI) tract is the most common cause of IDA in adult men and postmenopausal women. 2  Blood loss due to menorrhagia is the most common cause of iron deficiency in pre-menopausal women.
If you aren't consuming enough iron, or if you're losing too much iron, your body can't produce enough hemoglobin, and iron deficiency anemia will eventually develop. Causes of iron deficiency anemia include: Blood loss. Blood contains iron within red blood cells. So if you lose blood, you lose some iron. Women with heavy periods are at risk of iron deficiency anemia because they lose blood during menstruation.