American Society of Hematology

Blood Disorders

Why Should I Know About Blood Conditions?

When something is wrong with your blood, it can affect your total health. That is why it is important for you to know about some of the common blood disorders that may affect you.

People may be affected by many different types of blood conditions and blood cancers. Common blood disorders include anemiableeding disorders such as hemophiliablood clots, and blood cancers such as leukemialymphoma, and myeloma.

Talking to your doctor is the first step to take if you believe you may have a blood condition. If you are diagnosed with a blood disorder, your doctor may refer you to a hematologist.

What is Hematology?

Hematology is the study of blood in health and disease. It includes problems with the red blood cells, white blood cells, platelets, blood vessels, bone marrow, lymph nodes, spleen, and the proteins involved in bleeding and clotting (hemostasis and thrombosis). A hematologist is a medical doctor who applies this specialized knowledge to treat patients with blood conditions.

Learn more about the types of diseases that hematologists study and treat, as well as the importance of having a hematologist as part of your health-care team.

Blood disease animations and other ASH videos

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