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.
The Monroe Doctrine is the best known U.S. policy toward the Western Hemisphere. Buried in a routine annual message delivered to Congress by President James Monroe in December 1823, the doctrine warns European nations that the United States would not tolerate further colonization or puppet monarchs.
The Monroe Doctrine was a statement of United States foreign policy  expressing opposition to extension of European control or influence  in the western hemisphere. The Monrâ¦oe Doctrine meant little in  1823, when the Americans lacked the army and navy to enforce it.