In a diabetic patient experiencing a burning sensation in the tongue, what is the likely cause?

A burning sensation in the tongue, particularly in diabetic patients, is commonly associated with neuropathy. Diabetic neuropathy can lead to changes in sensation, including burning, tingling, or numbness in various parts of the body, including the oral cavity. This condition occurs due to prolonged high blood sugar levels damaging the nerves. Therefore, neuropathy is frequently the underlying cause of such sensations in this population.

While malnutrition is a potential consideration in many patients, it is less specifically related to the immediate symptom of burning tongue in diabetes compared to the impact of neuropathy. Similarly, medication side effects and dehydration can cause discomfort or changes in oral sensation, but they do not directly account for the characteristic burning sensation associated with nerve damage due to diabetes.