<unk>  (RAY-noz), in medicine, is a vasospastic disorder causing discoloration of the fingers, toes, and occasionally other extremities, named for French physician Maurice Raynaud (1834 - 1881). The cause of the<unk>  is unknown, but emotional stress and cold are classically triggers, and the discoloration follows a characteristic pattern in time: white, blue and red. It comprises both Raynaud's disease (primary Raynaud's), where the<unk>  is idiopathic, and Raynaud's syndrome (secondary Raynaud's), where it is secondary to something else.
Raynaud's phenomenon
Raynaud's disease
Venous claudication
Buerger's disease
Varicose veins
Monckeberg's arteriosclerosis
Buerger's disease criteria
Buerger's disease risk factors