This pattern often presents as a diarrhea or dysenteric disorder. This condition arises when Heat accumulates in the Lesser Yang, creating a disturbance that forces its way into the Stomach and Intestines.

Initially, an external pathogen obstructs the protective Qi in the Greater Yang, leading to fever. As this pathogen sinks deeper, it enters the Lesser Yang, where it causes a bitter taste in the mouth due to the constraint of ministerial Fire.

The Lesser Yang, functioning between the Greater Yang and Yang Brightness, typically discharges Yang Qi's Heat outward. However, when this discharge is impeded, the trapped Heat disturbs the Stomach and Intestines, leading to symptoms like vomiting or diarrhea.

This "hot" diarrhea is characterized by sticky, foul-smelling stools, and may include anal irritation, burning, and abdominal pain. In severe cases, there may be tenesmus. The presence of Heat in the body is indicated by a yellow coating on the tongue and a rapid, flooding pulse. This pattern demonstrates the complexities of Heat dynamics within the lesser yang and its impact on digestive health.