# Tongue Color Notes > A coated tongue is common. This page explains usual causes, home habits and signs that deserve a professional look. ## Guides - [Common Causes of Tongue Coating](https://white-or-yellow-tongue.pages.dev/common-causes-tongue-coating/): A white or yellow coating usually builds up when debris, dead cells and bacteria collect on the tongue's surface, and the common causes tongue coating readers. - [Signs of Oral Thrush](https://white-or-yellow-tongue.pages.dev/oral-thrush-signs/): Oral thrush is a fungal overgrowth that often shows as creamy white patches on the tongue, cheeks or palate, sometimes with soreness or a cotton-like feeling. - [Smoking and Tongue Color](https://white-or-yellow-tongue.pages.dev/smoking-tongue-color/): Smoking can stain and thicken the coating on the tongue, giving it a yellow, brown or dull white look. - [Dehydration and the Tongue](https://white-or-yellow-tongue.pages.dev/dehydration-tongue/): A dry mouth can leave the tongue looking whiter, yellower or rougher, because there is less saliva to wash away debris. - [A Tongue Check at the Dentist](https://white-or-yellow-tongue.pages.dev/tongue-check-at-dentist/): A tongue check at the dentist is a quick, painless look at the colour, texture and movement of your tongue, usually as part of a routine mouth examination. ## About - [About Tongue Color Notes](https://white-or-yellow-tongue.pages.dev/about/): not medical advice, how the site is funded and how guides are made ## Optional - [RSS feed](https://white-or-yellow-tongue.pages.dev/feed.xml)