Professor TANG Qisheng believes that the main responsibility for the occurrence of trichotillomania lies in the heart and liver. If emotions are stimulated， or if there is excessive pressure from studying and family， emotions are suppressed， resulting in liver

qi

not being relaxed， depression turning into fire， heart fire burning inflammation， disturbance of the soul， loss of muscle and vein restraint， mild cases of restless claws and nails， and severe cases of restlessness in hair pulling. Long-term consumption can damage the kidney essence and

yin

fluid， causing water to be inadequate for fire and hair loss due to loss of stability， exacerbating hair loss caused by hair pulling. This disease is characterized by a mixture of deficiency and excess， with kidney deficiency as the foundation and excessive heart and liver effulgent fire as the criteria. In terms of treatment， the basic principle of "treating the target in case of urgency and treating the root cause in case of delay" is adopted. In the initial stage， the main focus is on clearing the heart， calming the liver， and calming the mind. After the condition is relieved， in the mid-term， the main method is to clear the heart and calm the liver， supplemented by the method of tonifying the kidney and nourishing

yin

； In the later stage， it is important to nourish the kidneys， disperse blood stasis， and unblock

qi

and blood. In clinical practice， Professor TANG Qisheng followed the pathogenesis， combined with the differentiation of internal organs， attached importance to the combination of disease and syndrome， explored the deficiency and excess of the specimen， prescribed medication according to the syndrome， and self-formulated

Qingxin Pinggan Decoction

for the treatment of this disease， with good therapeutic effects.