‘脾虚’ (pí xū) is a foundational diagnostic term in Traditional Chinese Medicine (TCM), referring to a functional imbalance where the Spleen organ system fails to perform its key roles—especially transforming food and drink into usable energy (Qi) and blood, and holding blood and fluids in their proper places. Though named after the anatomical spleen, TCM’s ‘Spleen’ encompasses broader digestive and metabolic functions, including appetite regulation, muscle tone, and mental focus.

The character 脾 (pí) means ‘spleen’, while 虚 (xū) means ‘deficiency’, ‘emptiness’, or ‘weakness’. Together, they denote a state of insufficiency—not structural damage, but diminished functional capacity. People diagnosed with 脾虚 often experience fatigue, poor appetite, bloating after meals, loose stools, weak limbs, and a pale tongue with a thin white coating. It’s commonly addressed through dietary therapy (e.g., warming, easily digestible foods), herbal formulas like Si Jun Zi Tang, and lifestyle adjustments such as regular meals and moderate exercise.