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One of the oldest traditional medical systems that is widely accepted today is Ayurveda. Ancient knowledge underlying this medical system is still not fully comprehended. The main obstacle to the convergence between the theoretical doctrines of this and other contemporary systems is a lack of knowledge of the distinctions and parallels among them. The fundamentals of this systems are the dosha dhatu mala, the understanding of which is crucial for the ultimate goal of this science of preventing as well as treating ailments. Dhatus are the building blocks of the body corresponding to the tissues. They form the basic framework of the body and support its regular functioning. Rakta which is corelated with blood is one amongst the seven dhatus. It is also considered as prana because its presence is vital for maintenance of a healthy living status. It is formed by the Ranjana-karma of rasa dhatu in presence of ranjaka pitta or raktagni in yakrita, pleeha and amashaya and helps in formation of the succeeding dhatus. It is also mentioned under the dash pranayatanas or the dwellings of prana that are the places where prana or vital force resides. Any injury or loss in these pranayatanas can pose as a threat to the continuity of life or cause a temporary or permanent disability. This overview tries to highlight the long history and fundamental ideas of dhatus with special emphasis given to the rakta dhatu. This would aid emerging academics, researchers, and practitioners in developing a deeper understanding of the subject. Key words: Ayurveda, Dosha-Dhatu-Mala, Dhatu, Rakta Dhatu, Ranjaka Pitta, Raktagni
Joshi et al. (Mon,) studied this question.