What does loose or watery stool mean in Traditional Chinese Medicine?

In traditional Chinese medicine (TCM) practice, loose stools typically refer to stools that are more watery than usual or even ooze out; this condition is also known as diarrhea. It often occurs in cases associated with TCM pathological mechanisms such as spleen and stomach deficiency-cold, indigestion, or excessive dampness.

Spleen and stomach deficiency-cold refers to a lack of yang qi in the body, which leads to impaired function of the digestive system and consequently affects stool formation. Dyspepsia refers to weakened digestive and absorptive functions in the gastrointestinal tract, resulting in incomplete digestion and absorption of food, which in turn causes loose or watery stools. Excessive dampness refers to an elevated environmental humidity level that exacerbates internal dampness in the body, also affecting stool formation.

In the treatment of loose stools, Traditional Chinese Medicine (TCM) employs various therapeutic approaches tailored to the specific clinical presentation. For instance, in cases of spleen and stomach deficiency-cold syndrome, methods such as moxibustion, hot compresses, or cooking soups can be used to warm the spleen and stomach and enhance digestive and absorptive functions. For indigestion, techniques aimed at promoting digestion and relieving stagnation, as well as strengthening the spleen and replenishing qi, may be applied to facilitate gastrointestinal digestion and absorption. In cases of excessive dampness, methods such as clearing heat and eliminating dampness, or using aromatic herbs to resolve dampness, can be employed to remove dampness and alleviate the symptoms of loose stools.