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The link between diabetes and wound healing is important because high blood sugar can slow the body’s ability to repair cuts, blisters, and ulcers. Poor circulation, weak immunity, nerve damage, and inflammation are the main reasons wounds heal slowly in people with diabetes. Feet are commonly affected because injuries may go unnoticed due to reduced sensation. Even small wounds can become infected if ignored.Warning signs include redness, swelling, pain, discharge, tingling, or wounds that do not improve. Serious complications may include ulcers, gangrene, or amputation.