The seriousness of Raynaud's syndrome varies depending on its type. Primary Raynaud's syndrome, while potentially disruptive to daily activities, typically does not cause permanent damage to blood vessels and is generally not considered dangerous. Secondary Raynaud's syndrome, however, can be more severe. It carries risks such as skin ulcers and, in rare cases, tissue death (gangrene). Furthermore, it can significantly impact an individual's quality of life, and the underlying medical condition responsible for secondary Raynaud's may itself be severe.