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Diabetes symptoms: When diabetes symptoms are a concern

Red, swollen, tender gums

Diabetes may weaken the body's ability to fight germs. That raises the risk of infection in the gums and in the bones that hold the teeth in place. This can lead to another less common diabetes symptom when the gums pull away from the teeth. The teeth then may become loose, and sores or pockets of pus may develop in the gums.