Huangdi 8 1 Introduction to Difficult Classics

Huangdi's 81 Difficult Classics, referred to as Difficult Classics or 81 Difficult Classics, is an ancient theoretical work of Chinese medicine. This book is written in the form of question and answer, which discusses 81 questions, so it is also called "81 difficult questions". Based on basic theoretical knowledge, this book analyzes some diseases and syndromes. Among them, pulse science is from one to twenty-one, meridians are from twenty-two to twenty-nine, viscera are from thirty to forty-seven, diseases are from forty-eight to sixty-one, acupoints are from sixty-two to sixty-eight, and acupuncture is from sixty-nine to eighty-one.