The Compendium of Caraka 3.7.11

3.7.11

śoṇitajānāṃ tu khalu kuṣṭhaiḥ samānaṃ samutthānaṃ; sthānaṃ-raktavāhinyo dhamanyaḥ; saṃsthānam-aṇavo vṛttāścāpādāśca, sūkṣmatvāccaike bhavantyadṛśyāḥ; varṇaḥ-tāmraḥ; nāmāni-keśādā, lomādā, lomadvīpāḥ, saurasā, auḍumbarā, jantumātaraśceti; prabhāvaḥ-keśaśmaśrunakhalomapakṣmāpadhvaṃsaḥ, vraṇagatānāṃ ca harṣakaṇḍūtodasaṃsarpaṇāni, ativṛddhānāṃ ca tvaksirāsnāyumāṃsataruṇāsthibhakṣaṇamiti; cikitsitamapyeṣāṃ kuṣṭhaiḥ samānaṃ, taduttarakālamupadekṣyāmaḥ//

"The origin of those born from blood is identical to that of kuṣṭha; location: blood-carrying vessels; form: minute, round, and footless, and some, due to their subtleness, are invisible; color: coppery; names: keśāda, lomāda, lomadvīpa, saurasa, auḍumbara, and jantumātṛ; effect: falling out of the hair of the head, beard, nails, body hair, and eyelashes, and when in wounds, tingling, itching, pricking pain, and crawling sensations, and when excessively multiplied, the eating away of the skin, vessels, ligaments, flesh, and cartilages; their treatment is also identical to that of kuṣṭha, which we shall explain later."