Short answer · Medically reviewed summary · Last updated: 2026-05-08
Degos disease is not contagious and cannot be spread from person to person through touch, droplets, or any other form of contact. It is a rare, life-threatening vasculopathy characterized by the occlusion of small-to-medium-sized blood vessels, and there is absolutely no risk to family members, caregivers, or friends who interact with an individual diagnosed with Degos disease. What is the underlying cause of Degos disease? Degos disease, also known as malignant atrophic papulosis, is not an infectious process.
Degos disease is not contagious and cannot be spread from person to person through touch, droplets, or any other form of contact. It is a rare, life-threatening vasculopathy characterized by the occlusion of small-to-medium-sized blood vessels, and there is absolutely no risk to family members, caregivers, or friends who interact with an individual diagnosed with Degos disease.
Degos disease, also known as malignant atrophic papulosis, is not an infectious process. While the exact cause remains unknown, current medical literature suggests it is an obliterative vasculopathy. This means the body’s own immune system or clotting mechanisms cause the walls of small blood vessels to thicken and obstruct, leading to tissue death (necrosis). Because Degos disease is driven by internal vascular and immune dysregulation rather than a virus, bacteria, or fungus, it is impossible to transmit to others.
The confusion often stems from the skin manifestations of Degos disease, which appear as porcelain-white papules with erythematous borders. Because these lesions can look like rashes or infectious sores, bystanders may mistakenly fear they are catching something. It is important to emphasize that these skin changes are the result of localized ischemia (lack of blood flow) and are entirely internal in origin. There is no risk associated with physical proximity or sharing living spaces with someone who has Degos disease.
Currently, there is no evidence that Degos disease is triggered by environmental pathogens or infectious exposures. While some researchers are investigating potential genetic predispositions or autoimmune triggers, the condition is not linked to:
Medical disclaimer: This content is for informational purposes only and does not constitute medical advice, diagnosis, or treatment; always seek the advice of your physician or other qualified health provider with any questions regarding a medical condition.