A complication of uncontrolled diabetes that affects the tongue is likely a result of what?

Uncontrolled diabetes can lead to several complications, and one significant consequence is the development of high blood sugar levels, which directly affects various systems in the body, including the oral environment. Hyperglycemia creates an environment conducive to the growth of bacteria and fungi, which can result in oral infections and complications such as thrush or sore lesions on the tongue.

Furthermore, high blood sugar can lead to changes in saliva production and composition, increasing the risk of dry mouth (xerostomia) and making the oral cavity more susceptible to infections. The high glucose levels in saliva can also provide nourishment to microbial organisms, exacerbating oral health issues.

In the context of this question, uncontrolled diabetes, characterized by high blood sugar, is a primary driver of these changes, making it the most relevant answer regarding complications affecting the tongue.