Can your tongue tell if you are sick? That is what Dr. Manny Alvarez tested and in this test he found that your tongue can tell if you are sick. He found that there are many signs to tell you if you are sick but you tongue also tells you if you are healthy. If your tongue is light pink that is a good sign but there are other signs that mean you could be at risk for an illness. Some of those signs include a bright red tongue, white all over, white patches, cracks or wrinkles,painful sores, or red bumps. These are just a couple of signs for you to tell if you are sick. http://www.foxnews.com/health/2017/11/13/can-your-tongue-tell-if-youre-sick.html