Noah S. Siegel, M.D.

Dr. Allen Lam is an ear, nose and throat (ENT) specialist at Mass. Eye and Ear, Longwood. He treats children and adults for general ENT and sinus conditions.

Dr. Caroline Banks is a fellowship-trained facial plastic/reconstructive surgeon at Mass. Eye and Ear, Longwood. She specializes in facial nerve disorders. Accepting virtual and in-person appointments.

Hemophilia is an inherited bleeding disorder in which the blood does not clot normally because of a missing or dysfunctional clotting protein. Clotting proteins, also called clotting factors, work with other blood components such as platelets, von Willebrand factor, and other proteins to form a blood clot. When any of these components is absent or low, increased bleeding can result. If clotting factor VIII (8) or factor IX (9) are affected, this bleeding disorder is called hemophilia.