When foreign learners come to learn Chinese in China, they should know that Canons of Difficult Issues is the classic of traditional Chinese medical science. The whole name is Huang Emperor‘s Eighty-one Canon of Difficult Issues, which was written by the famous doctor Bian Que.

Nowadays, many scholars believe that the age of finishing this book was around Qin and Han dynasties, at least before the Eastern Han Dynasty. Therefore, students who study Chinese in China should know it is written after repeated modification and complement in a long process. The book Canons of Difficult Issues explained and solved eighty-one difficult problems by setting the difficult issues to deal with. When you study Mandarin in China, you should know that the contents include pulse, main and collateral channels, viscera, diseases, acupoints and acupuncture therapy.

One point that the foreigners who learn Chinese in China should know is that the classic Canons of Difficult Issues deduced the theories of Neijing and proposed some unique opinions. Some of them are still used in today‘s medical science. Therefore, it has been reputed as important medical classic in China.