Iron deficiency anemia occurs when the body does not have enough iron. It can cause weakness, pale skin, and general tiredness.
The body needs iron to produce new red blood cells. Low iron levels can be caused by:
Iron deficiency anemia is usually diagnosed using blood tests, but the cause is usually found when the doctor is taking a medical history or performing a colonoscopy. Treatment often includes making diet changes, taking iron supplements, and treating other conditions or problems that may be causing iron deficiency. In rare cases, blood transfusions may be needed.
WebMD Medical Reference from Healthwise