[Pathogenesis of pandu] Aggravated pitta predominant dosha vitiates the dhatu. This vitiation of dhatu cause sluggishnesss (shithilata) and heaviness (gaurava) in the dhatu
ततो वर्णबलस्नेहा ये चान्येऽप्योजसो गुणाः| व्रजन्ति क्षयमत्यर्थं दोषदूष्यप्रदूषणात्||५||
resulting in diminution of complexion (varna), strength (bala), unctuousness (sneha) and the qualities of ojas. Thus, the person develops diminished blood (rakta)