Hemostasis and Thrombosis Center
Conditions We Treat


Hemostasis is the way the body prevents bleeding and stops too much bleeding from a cut or injury. Thrombosis is when blood clots block blood vessels. The Hemostasis and Thrombosis Center treats all bleeding and clotting disorders that affect children and young adults.

Hemophilia and Bleeding Disorders

The two most common types of bleeding disorders are:

These are life-long conditions that can cause spontaneous bleeding or bleeding with triggers such as surgeries or the onset of menstruation. There are different severities of hemophilia and von Willebrand disease. These blood disorders are inherited (genetic) conditions. Some types of bleeding disorders are not inherited but can be caused by a new change in a person’s genes. Other bleeding disorders can be associated with medications or antibodies that form.


Thrombosis is the development of clots inside the blood vessels which can result in pain and injury to tissue. Children and young adults with clotting disorders may develop clots in the “deep veins” of the legs or pelvis, in the lungs or in the brain. These clots may block veins and arteries and prevent blood from getting to organs such as the brain and heart.