A dry and grooved/fissured tongue is a well-known symptom of the condition and therefore warrants a visit to a health practitioner.
Other health bodies describe the tongue as having a rough texture, which may be accompanied by dry cracked lips.
Blisters, infections, dryness, itchiness, discolourations, and abnormalities of the skin can also be warning signs of high blood sugar.
One of the main risks of having reduced saliva is tooth decay, which can set the stage for other conditions such as gingivitis.
The earlier the condition is detected, the better the odds of sending it into remission before damage is incurred.