What are the signs of anemia in people with cancer?

Anemia can make you feel very tired, short of breath, and lightheaded. Other signs may include feeling dizzy or faint, headaches, a fast heartbeat, and pale skin.

These signs happen because anemia means the number of red blood cells is below normal. Red blood cells carry oxygen from the lungs throughout your body, so when there are too few, your body may not get the oxygen it needs to work properly—leaving you feeling drained.

Tell your doctor if you are extremely tired or notice other signs of anemia. You will have blood tests to check for it, and treatment is based on your symptoms and on what is causing the anemia. Your healthcare team can talk with you about steps that may help you feel better, such as saving your energy, balancing rest with activity, and eating and drinking well, as well as whether treatments like medicine, iron, or a blood transfusion might help.