How does "Phlegm" typically manifest in TCM pathology?

In Traditional Chinese Medicine (TCM), "Phlegm" is considered a pathological factor that can arise from various conditions, often related to the dysfunction of the Spleen and the accumulation of moisture or dampness in the body. When Phlegm is present, it typically manifests through specific symptoms that indicate its presence and impact on the body's functions.

The identification of coughing and a greasy tongue coating as manifestations of Phlegm aligns with TCM principles. Coughing is one of the primary symptoms associated with Phlegm in the respiratory system, where the accumulation of Phlegm can obstruct the passageways and lead to productive cough or difficulty breathing. A greasy or moist tongue coating is another key indicator, reflecting the presence of excess fluids and suggesting that the Spleen is unable to transform and transport fluids efficiently, allowing them to accumulate as Phlegm.

In contrast, the other options do not directly correspond to the TCM understanding of Phlegm. While fatigue, weakness, skin rashes, and loss of appetite can indicate various other imbalances or pathologies, they do not typically signify the particular nature and characteristics of Phlegm accumulation as described in TCM. As such, the correct association of coughing and a greasy tongue