The Compendium of Caraka 6.13.44

6.13.44

tasya rūpāṇi---tadadho nābhyāḥ prāyo 'abhivardhamānamudakodaraṃ bhavati, yathābalaṃ ca doṣāṇāṃ rūpāṇi darśayati, api cāturaḥ salohitanīlapītapicchilakuṇapagandhyāmavarca upaveśate, hikkāśvāsakāsatṛṣṇāpramehārocakāvipākadaurbalyaparītaśca bhavati; etacchidrodaramiti vidyāt//

Its signs are: developing mostly below the navel, it becomes udakodara, and shows the symptoms of the doṣas according to their strength; moreover, the patient passes āma feces that are reddish, blue, yellow, slimy, and have a cadaverous smell, and is afflicted with hiccup, dyspnea, cough, thirst, prameha, tastelessness, indigestion, and weakness—this one should recognize as chidrodara.