The most common symptom of anemia is fatigue (feeling tired or weak). If you have anemia, you may find it hard to find the energy to do normal activities.
Other signs and symptoms of anemia include:
These signs and symptoms can occur because your heart has to work harder to pump oxygen-rich blood through your body.
Mild to moderate anemia may cause very mild symptoms or none at all.
Some people who have anemia may have arrhythmias (ah-RITH-me-ahs). Arrhythmias are problems with the rate or rhythm of the heartbeat. Over time, arrhythmias can damage your heart and possibly lead to heart failure.
Anemia also can damage other organs in your body because your blood can't get enough oxygen to them.
Anemia can weaken people who have cancer or HIV/AIDS. This can make their treatments not work as well.
Anemia also can cause many other health problems. People who have kidney disease and anemia are more likely to have heart problems. With some types of anemia, too little fluid intake or too much loss of fluid in the blood and body can occur. Severe loss of fluid can be life threatening.
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