Health Topics

Thalassemia is an inherited blood disorder that causes the body to make fewer healthy red blood cells and less of a protein called hemoglobin than usual.

Thrombocythemia and thrombocytosis are platelet disorders that occur when the number of platelets in your blood is too high. This can cause blood clots to form in your blood vessels.

Thrombocytopenia is a platelet disorder that occurs when the number of platelets in your blood is too low. This can prevent your blood from clotting after an injury or surgery, making it hard to stop bleeding.

Thrombotic thrombocytopenic purpura is a rare platelet disorder in which blood clots form in small blood vessels throughout the body. The clots can limit or block blood flow to organs.

A total artificial heart (TAH) is a mechanical pump that is used to replace heart ventricles that are diseased or damaged. The ventricles pump blood out of the heart to the lungs and other parts of the body.

Transcatheter aortic valve replacement (TAVR) is a procedure to replace a faulty aortic valve with an artificial aortic valve.

Blood transfusions and bone marrow transplants are two ways doctors can treat blood problems. Learn more about these procedures.

Varicose veins are swollen, twisted veins that lie just under the skin and usually occur in the legs.