Vascular and Vein Institute of the South

Overview

Are Gangrene and Necrosis the Same Thing Gangrene and necrosis are closely related, but they are not the same thing. Necrosis is the medical term for the death of body tissue caused by a lack of blood supply, infection, injury, or toxins. Gangrene is a serious type of necrosis that usually occurs when tissue dies due to severely reduced blood flow, often combined with a bacterial infection. In other words, all gangrene involves necrosis, but not all necrosis becomes gangrene. Common signs of gangrene include skin discoloration that appears black, green, or purple, severe pain or numbness, swelling, foul-smelling drainage, and wounds that do not heal. People with peripheral artery disease (PAD), diabetes, or poor circulation are at a higher risk because reduced blood flow prevents tissues from receiving the oxygen they need to survive. Gangrene is a medical emergency that requires prompt evaluation and treatment to restore circulation, control infection, and prevent the condition from spreading. Early diagnosis can significantly improve outcomes and may help avoid permanent tissue damage or limb loss. If you have a non-healing wound, changes in skin color, or symptoms of poor circulation, schedule a vascular evaluation today. Early intervention can help protect your limbs, improve blood flow, and preserve your long-term vascular health.

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