What indicates dry gangrene?

Dry gangrene is primarily caused by a lack of sufficient blood supply through arteries, which leads to the death of tissues due to inadequate oxygen and nutrients. When arteries are blocked or narrowed, blood cannot reach certain parts of the body effectively, resulting in a condition where tissues become ischemic and eventually necrotic. This process is typically gradual, and the affected area often becomes dry, shriveled, and discolored, forming a clear distinction between healthy and necrotic tissues.

Understanding the nature of dry gangrene emphasizes the critical role of arterial blood flow in maintaining tissue health. If blood supply is compromised, as seen in cases of peripheral artery disease or other circulatory disorders, tissues can deteriorate over time, culminating in dry gangrene. This contrasts with moist gangrene, which usually involves a secondary infection and a different underlying mechanism.