Yes. That is why most doctors depend on tongue color for diagnosis and this was more in olden times when diagnostic labs were not available. Here I remember an ancedote. Once a Bengali doctor asked a Bihari woman patient tro show her 'joban' (tongue). But the lady was infurirated and slapped the doctor- How you dare to ask me to show 'joban' (breast or female youth)
G. K. Ajmani Tax consultant
http://gkajmani-mystraythoughts.blogspot.com/
Good information given in the link, by having a keep watch on the color of tongue, one can have a keep watch on the status of health.
http://www.comparenshop.in
We all are concerned with our health. At times we are misguided by our own beliefs and lack of knowledge. For such people this information in the link article certainly helps.