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There are two important aspects while diagnosing a disease as per principles of Ayurveda. It always considers interaction between the individual and the affecting pathological entities.

There are two important aspects while diagnosing a disease as per principles of Ayurveda. It always considers interaction between the individual and the affecting pathological entities.

====Analysis of the individual====

====Analysis of the individual====

The first being an evaluation of the self-healing capacity of the body which depends upon equilibrium of five components, namely ''doshas'' (body humors), ''agni'' (digestive and metabolic capacity), ''dhatu'' (body tissues), ''mala'' (waste) and psycho-spiritual state. Health is a state of equilibrium, whereas disease is a state of dis-equilibrium of any of these factors. According to [[Chikitsaprabhritiya Adhyaya#Swabhavoparama vada (theory of natural destruction)|''swabhavoparam vada'' (theory of natural resolution)]], the resolution / destruction of the existing always happen naturally in the course of time. [[Chikitsaprabhritiya Adhyaya#Swabhavoparama vada (theory of natural destruction)|(Cha.Su.16/27)]] So the nature itself heals disequilibrium. This aspect of host defence mechanism is important to be assessed for knowing natural healing capacity of an individual. In the fourth chapter, Prameha Nidana, the process of onset of disease through interaction between aggravating and pacifying factors is described.[[Prameha Nidana#Process of Onset of Disease|(Cha.Ni.4/4)]] If the host defense factors are stronger than aggravating ones, then the disease will not occur and vice versa. Therefore, before making diagnosis of a disease, examination of patient  is important with emphasis on his ''prakriti'' (basic constitution), ''sara'' (quality of tissues) etc described in context of ten fold examination of patient(Cha.Vi.8/94-131)]]. Every person has a unique constitution and hence the same biological investigations cannot be precise to assess his health status completely. Personalized assessment is important to diagnose normal and abnormal state of the individual.

The first being an evaluation of the self-healing capacity of the body which depends upon equilibrium of five components, namely ''doshas'' (body humors), ''agni'' (digestive and metabolic capacity), ''dhatu'' (body tissues), ''mala'' (waste) and psycho-spiritual state. Health is a state of equilibrium, whereas disease is a state of dis-equilibrium of any of these factors. According to theory of natural destruction (Chikitsaprabhritiya Adhyaya)| and theory of natural resolution (swabhavoparam vada), the resolution / destruction of the existing always happen naturally in the course of time. So the nature itself heals disequilibrium. This aspect of host defence mechanism is important to be assessed for knowing natural healing capacity of an individual. In the fourth chapter, Prameha Nidana, the process of onset of disease through interaction between aggravating and pacifying factors is described (Cha.Ni.4/4)]] If the host defense factors are stronger than aggravating ones, then the disease will not occur and vice versa. Therefore, before making diagnosis of a disease, examination of patient  is important with emphasis on his ''prakriti'' (basic constitution), ''sara'' (quality of tissues) etc described in context of ten fold examination of patient(Cha.Vi.8/94-131)]]. Every person has a unique constitution and hence the same biological investigations cannot be precise to assess his health status completely. Personalized assessment is important to diagnose normal and abnormal state of the individual.

====Analysis of disease====

====Analysis of disease====

* The first chapter, [[Jwara Nidana]] , introduces basic principles of diagnosis of a disease as well as the disease ''jwara'' with involvement of ''rasa dhatu'' as ''dushya''.   

* The first chapter, [[Jwara Nidana]] , introduces basic principles of diagnosis of a disease as well as the disease ''jwara'' with involvement of ''rasa dhatu'' as ''dushya''.   

* The second chapter, [[Raktapitta Nidana]], deals with various pathologies related to ''rakta dhatu''  

* The second chapter, [[Raktapitta Nidana]], deals with various pathologies related to ''rakta dhatu''  

* The third chapter, [[Gulma Nidana]], deals with ''mamsa dhatu'' predominantly  

* The third chapter, [[Gulma Nidana]], deals with ''mamsa dhatu''(muscle tissue) predominantly  

* The fourth chapter, [[Prameha Nidana]], involves ''meda dhatu'' predominantly  

* The fourth chapter, [[Prameha Nidana]], involves ''meda dhatu'' (tissue fat) predominantly  

* The fifth chapter, [[Kushtha Nidana]], involves seven ''dushyas''  

* The fifth chapter, [[Kushtha Nidana]], involves seven ''dushyas'' (vitiated dhatu)

* The sixth chapter, [[Shosha Nidana]], deals with the pathology of emaciation

* The sixth chapter, [[Shosha Nidana]], deals with the pathology of emaciation

* The seventh chapter, [[Unmada Nidana]] explain insanity and psychotic disorders.   

* The seventh chapter, [[Unmada Nidana]] explain insanity and psychotic disorders.