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210 pages, Hardcover
Published January 1, 1995
A blue tongue color during pregnancy may indicate the imminent danger of miscarriage. This was noted as far back as the 7th century by Chao Yuan-Fang in Discussion of the Origin and Symptoms of Disease. Chao observed that a blue tongue color and red face in a pregnant woman indicate the imminent death of the fetus and survival of the mother, while a red tongue color and a blue face indicate the death of the mother and survival of the baby.