Any process that activates or increases the frequency, rate or extent of collagen catabolism. Collagen catabolism is the proteolytic chemical reactions and pathways resulting in the breakdown of collagen in the extracellular matrix.
Synonyms:
exact_synonym:
positive regulation of collagen breakdown; positive regulation of collagen catabolism; positive regulation of collagen degradation; up regulation of collagen catabolic process; upregulation of collagen catabolic process