Hemoglobin is an iron-rich protein that helps red blood cells transport oxygen from the lungs to the rest of the body. When you are anemic, your body is not getting enough oxygenated blood. This can make you feel tired or weak. You may also experience shortness of breath, dizziness, headache or an irregular heartbeat.

There are many types and causes of anemia. Mild anemia is a common and treatable condition that can affect anyone. Some people are at higher risk for anemia, including women during their periods and pregnancy and those who donate blood frequently, don't get enough iron or certain vitamins, or take certain medications or treatments, such as chemotherapy for cancer.

Anemia can also be a sign of a more serious condition. It can be the result of chronic bleeding in the stomach. Chronic inflammation from infection, kidney disease, cancer, or autoimmune disease can also cause the body to make fewer red blood cells.

Your doctor will consider your medical history and physical exam and test results when diagnosing and treating anemia. He or she will use a simple blood test to confirm that you have low levels of red blood cells or hemoglobin. For some types of mild to moderate anemia, your doctor may recommend over-the-counter iron supplements or prescription iron supplements, certain vitamins, intravenous iron therapy, or drugs that help your body make more red blood cells. To prevent anemia in the future, your doctor may also suggest changes in your diet. If you have severe anemia, y our doctor may recommend red blood cell transfusion.