In medicine, Raynaud's phenomenon is discoloration of the fingers or toes due to emotion or cold in a characteristic pattern in time: white, blue and red. It is associated with a large number of diseases (mainly forms of vasculitis and hence belonging to rheumatology), but is idiopathic in most sufferers and is then called Raynaud's disease. Medicine is a branch of health science concerned with maintaining health and restoring it by treating disease. ... For the network protocol, see finger protocol. ... TOE describes those whom have won a Tony Award, an Oscar Award, and an Emmy Award. ... In medicine, vasculitis (plural: vasculitides) is a group of diseases featuring inflammation of the wall of blood vessels. ... Rheumatology, a subspecialty of internal medicine, is devoted to the diagnosis and treatment of rheumatic diseases. ... Idiopathic is a medical adjective that indicates that a recognized cause has not yet been established. ... Raynauds disease (RAY-noz) is a condition that affects blood flow to the extremities which include the fingers, toes, nose and ears when exposed to temperature changes or stress. ...