Ancient formularies describe ten types of water disorders: shortness of breath and inability to lie flat is diagnosed as Heart Water (Xin Shui); pain in the hypochondrium is diagnosed as Liver Water (Gan Shui); loose stools resembling duck feces is diagnosed as Lung Water (Fei Shui); heavy and burdensome limbs are diagnosed as Spleen Water (Pi Shui); lower back pain and cold feet are diagnosed as Kidney Water (Shen Shui); bitter taste in the mouth and dry throat are diagnosed as Gallbladder Water (Dan Shui); alternating deficiency and excess states are diagnosed as Large Intestine Water (Da Chang Shui); abdominal urgency with emaciated limbs is diagnosed as Bladder Water (Pang Guang Shui); difficult and obstructed urination is diagnosed as Stomach Water (Wei Shui); urgency and fullness in the lower abdomen are diagnosed as Small Intestine Water (Xiao Chang Shui). One should differentiate these conditions by examining the meridians involved, distinguishing between interior and exterior locations, and carefully assessing the pulse and symptoms. However, these ten water disorders are referred to as "True Water" (Zheng Shui). Externally, there are also Wind Water (Feng Shui), Skin Water (Pi Shui), Stone Water (Shi Shui), and Yellow Sweat (Huang Han). Based on theoretical principles, wind corresponds to the Liver, skin water to the Lungs, yellow sweat to the Spleen, and stone water to the Kidneys. Although the nomenclature and theory remain consistent, the clinical manifestations differ slightly. Since ancient formularies list these conditions in detail, they must be distinguished carefully. Wind Water presents with a floating pulse and aversion to wind; Skin Water also presents with a floating pulse, but pitting edema occurs upon pressure without aversion to wind; Stone Water presents with a deep pulse, abdominal fullness, but no dyspnea; Yellow Sweat presents with a deep and slow pulse, fever, excessive salivation, and if prolonged, will inevitably lead to carbuncles and pus. True Water is characterized by a floating and slow pulse at the Cun Kou (Radial Artery at the wrist); floating indicates heat, while slow indicates latent yang. The interaction of heat and latency is termed "Deep" (Chen). At the Fu Yang (Dorsalis Pedis Artery), the pulse is floating and rapid; floating indicates heat, while rapid indicates stagnation. The interaction of stagnation and heat is termed "Hidden" (Fu). The combination of Deep and Hidden pulses is termed "Fire" (Huo). Deepness leads to emptiness in the collateral vessels, while hiddenness leads to difficulty in urination. The interaction of emptiness and difficulty causes water to flow into the skin, resulting in True Water. This excerpt is from *Jingui Yaolue* (Essential Prescriptions from the Golden Cabinet). The reason for examining both the Cun Kou and Fu Yang pulses is that water qi does not reside in a single meridian. Generally, a floating pulse accompanied by rapidity indicates latent deficiency-cold within; over time, it will transform into a deep and hidden state. A deep and hidden state signifies yang deficiency and yin excess, inevitably leading to water retention. It must be understood that the pulse in water disorders is invariably deep. Treatises state: "A pulse that floats outwards indicates death," because the pulse does not correspond to the disease. If the lips are black, the Liver is injured; if the Supraclavicular Fossa (Que Pen) is flat, the Heart is injured; if the Umbilicus protrudes, the Spleen is injured; if the dorsum of the foot is flat, the Kidney is injured; if the back is flat, the Lungs are injured. These five types of injury are incurable. *Treatment Methods* state: "Edema above the waist should be treated with diaphoresis (sweating method); edema below the waist should be treated with promoting urination." Students of medicine should be aware of this.