The Compendium of Caraka 3.5.8_11

3.5.8_11

mūtravahānāṃ srotasāṃ bastirmūlaṃ *vaṅkṣaṇau ca, praduṣṭānāṃ tu khalveṣāmidaṃ viśeṣavijñānaṃ bhavati; tadyathā---atisṛṣṭamatibaddhaṃ prakupitamalpālpamabhīkṣṇaṃ vā bahalaṃ saśūlaṃ mūtrayantaṃ dṛṣṭvā mūtravahānyasya srotāṃsi praduṣṭānīti vidyāt/

The urinary bladder and the two groins are the root of the channels carrying urine, and when these are vitiated, this is their specific diagnostic knowledge; namely: seeing one urinating excessively, in an excessively obstructed manner, agitatedly, in minute amounts, frequently, or copiously and with pain, one should know that his channels carrying urine are vitiated.