Diabetes mellitus is a chronic disease that has many complications, among which is the effect of diabetes on the blood vessels leading to damage, narrowing and may lead to blockage of the blood vessels, leading to alteration of blood perfusion and subsequent reduction in the oxygen and nutritional delivery to the tissues which will affect wound healing. Diabetes can affect the nerves leading to nerve damage (diabetic neuropathy); nerves affected are responsible for temperature, pressure, texture and pain sensation. The nerves of the lower legs and feet when affected can lead to insensitivity to temperature and pain in the lower legs and feet and patients may experience numbness and tingling sensation in these areas.
Diabetic patients with neuropathy have an increased risk of burn injuries. These burns may happen from soaking the feet in hot water, heating pads, walking on hot surface, and contact with a warming device such as heaters. Because of the impaired sensation of the feet in these patients, they may sustain a burn injury without being aware of it. These patients have poor wound healing due to the effect of diabetes on the nerves and blood vessels and the increased risk of wound infection in diabetic patients.
Burns in diabetic patients even when they are minor may lead to ulceration of the wound, serious infection and even amputation of the limb. Therefore preventing and early recognition of burns in diabetic patients is very important.