This book is a comprehensive introduction to the fundamentals of Chinese Fingernail Image Diagnosis (FID), a non-invasive clinical examination which can assess an individual's state of health. FID can be used as an auxiliary diagnostic method to provide diagnostic clues and proper guidance for treatment. One great strength of this method is its non-invasive nature. Formed by blood and Qi between the nail bed and nail plate, the fingernail image can be used to observe pathological changes...
