| Phlegm, Rheum, Water and Damp become pathogenic when their metabolism becomes disordered. Of the same source, and inter-transformable, they are classified as: | ||||
| • | Damp — a wandering pathogenic Body Fluid. | |||
| • | Water — a gathering pathogenic Body Fluid. | |||
| • | Rheum — a Body Fluid with pathogens. | |||
| • | Phlegm — concentrated Rheum. | |||
| Jingui Yaolue classified Rheum as: | ||||
| • | Phlegmatic Rheum of the abdomen. | |||
| • | Suspending Rheum of the chest or diaphragm. | |||
| • | Sustaining Rheum of the hypochondriac area. | |||
| • | Overflowing Rheum of the skin and muscles. | |||