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Fatigue presents with bodily weariness, low spirits, and disinclination to speak. Qi vacuity is the core pathomechanism.
Key differentiation: Qi vacuity shows fatigue with shortness of breath and spontaneous sweating; blood vacuity shows sallow complexion; yang vacuity shows cold aversion; yin vacuity shows dry mouth with afternoon heat.
@misc{bencaodian-pi-lao,
author = {{Bencaodian Editorial}},
title = {Pi Lao 疲劳 (Fatigue)},
year = {2026},
howpublished = {Bencao Dian: A Bilingual Knowledge Graph of Traditional Chinese Medicine},
url = {https://bencaodian.org/en/conditions/pi-lao},
urldate = {2026-04-17},
note = {CC BY-SA 4.0}
}© Bencaodian Editorial · Licensed under CC BY-SA 4.0