Healthy Controls vs CHF Tongues (IMAGE) European Society of Cardiology Caption Clinically, there are differences in tongue images, including tongue coating and tongue colour between chronic heart failure (CHF) patients and healthy individuals. Recent reports have suggested alterations in the tongue microbiota, which may play a critical role in diseases. CHF-associated tongue coating microbiome dysbiosis has not yet been clearly defined. Credit @European Society of Cardiology 2020 Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.