In the first part of the book “अष्टांग हृदय”, he asked the ancient medicines, necessary instructions for the scholars, health inspection according to daily and season, the formation of diseases, the properties of various types of Khudha substances, identification of toxic substances and the diseases Treatment, personal purity, medicine and the name of their department are described.
In the second part of this book, he has explained the composition of the human body, the major parts of the body in detail, the human nature and its various forms and its behaviors.
In the third part of the book, many diseases such as fever, epilepsy, vomiting, breathing and skin diseases etc. have been explained due to diseases and treatment. In the fourth part, vomiting and hygiene and highlighting the issues and treatment related to child conduct and diseases related to diseases in the last fifth part have been highlighted. Only then the important treatise of Ayurveda is accepted. It also proves that in this era, India's medical science was very advanced and Vagbhatt was India's greatest biologist. This is their brief description available.