身体好不好，看舌头就知道！若舌头出现这6种情况，当心是疾病信号

参考资料：

[1]Sarah Dowdey，How Your Tongue Works，how stuff works，https://health.howstuffworks.com/human-body/parts/tongue.htm

[2]"Mucous membrane." Encyclopædia Britannica.

http://library.eb.com/eb/article-9054122.

[3]"ADA Statement on Intraoral/Perioral Piercing and tongue splitting." American Dental Association.

http://www.ada.org/prof/resources/positions/statements/piercing.asp

[4]"Digestive system." Encyclopædia Britannica. http://library.eb.com/eb/article-45314.

[5]周三杰. 婴儿期行舌系带矫正术的并发症[J]. 海南医学,2005,16(9):52-52,12.

DOI:10.3969/j.issn.1003-6350.2005.09.027.