The Compendium of Caraka 6.5.42

6.5.42

vidāhalakṣaṇe gulme bahistuṅge samunnate/
śyāve saraktaparyante saṃsparśe bastisaṃnibhe//

When an abdominal lump shows signs of suppurating, is high and elevated on the outside,
dusky with reddish borders, and feels like a bladder upon touch;