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Diseases of the Stomach manifest as abdominal distension, pain in the epigastrium centered at the heart region, pain radiating upward to both hypochondria, obstruction in the diaphragm and pharynx, and difficulty in swallowing food. Treatment should involve selecting Zusanli (ST36). Difficulty in swallowing and obstruction indicate that the pathogenic factor is located in the epigastrium. If the pathology is in the Upper Wan (Shangwan, CV13), one should press before needling; if it is in the Lower Wan (Xiawan, CV10), one should disperse the pathogen and guide it out.

If the Stomach pulse is firm and long, and the complexion is red, the patient will suffer from pain resembling a fracture of the femur (Zhebi). If the pulse is soft and scattered, the patient will suffer from Shi Bi (food stagnation bi-syndrome) accompanied by thigh pain. If there is Pi Ji (abdominal mass) in the Stomach, eating cold food causes pain and inability to eat, while eating hot food allows for eating.

Stomach distension manifests as abdominal fullness, epigastric pain, smelling burnt odors with the nose, interference with eating, and difficult defecation.

When the Stomach pulse is diagnosed, what are the clinical manifestations? It is said: Excess in the Stomach leads to distension, deficiency leads to diarrhea. If the disease originates in the Stomach with distension and fullness; after five days, it transmits to the Kidney, causing lower abdominal, lumbar, and spinal pain, and soreness in the shins; three days later, it transmits to the Bladder, causing pain in the back tendons and urinary retention; five days later, it transmits to the Spleen, causing obstruction, body pain, and heaviness (The Ling Shu records this as transmission to the Heart). If the condition persists for six days, death ensues, occurring after midnight in winter or at noon in summer. (Some versions read "three days" instead of "six days").

A pulse that is floating and knotted (Kou): Floating indicates Yang, Kou indicates Yin. The interaction of floating and kou generates heat in the Stomach Qi, leading to the severance of Yang. A Fuyang pulse that is floating indicates deficient Stomach Qi. A Fuyang pulse that is floating and large indicates slight deficiency in the Stomach organ, resulting in vexation; defecation will occur twice daily. A Kou pulse with Stomach Qi present is characterized by a pulse that is floating, large, and soft; light pressure reveals the Kou quality, thus confirming Kou with Stomach Qi. A Fuyang pulse that is rapid indicates heat in the Stomach, leading to efficient digestion and hunger. A Fuyang pulse that is choppy indicates cold in the Stomach, leading to indigestion of water and grain. A Fuyang pulse that is coarse and floating indicates a difficult-to-treat condition. A Fuyang pulse that is floating and slow indicates a chronic illness. A deficient Fuyang pulse leads to enuresis, while an excess Fuyang pulse leads to flatus.

Headache and heaviness following movement, and heat appearing in the morning, belong to the Stomach. When Jue Qi (rebellious Qi) lodges in the Stomach, dreams of food and drink occur.

The Foot-Yangming Stomach Meridian originates at the side of the nose, intersects at the root of the nose, binds alongside the Foot-Taiyang Bladder Meridian, descends along the lateral aspect of the nose, enters the upper teeth, emerges to flank the lips, circles the lips, and intersects at Chengjiang (CV24). It then follows the posterior mandible, exits at Daying (ST5), follows the Jiache (ST6), ascends anterior to the ear, passes through Guest Master (ST7), follows the hairline, and reaches the forehead. Its branch descends from anterior to Daying to Renying (ST9), follows the throat, enters the Supraclavicular Fossa (Quepen, ST12), descends through the diaphragm, belongs to the Stomach, and connects with the Spleen. Its straight branch descends from Quepen along the medial aspect of the breast, descends flanking the umbilicus, and enters the Qiegang (Inguinal Region). Another branch originates from the lower opening of the Stomach, follows the interior of the abdomen, descends to the Qiegang to join the main vessel, descends through Biguan (ST31), reaches Futu (ST32), descends into the knee patella, follows the lateral aspect of the tibia, descends to the dorsum of the foot, and enters the space between the toes of the middle toe. Another branch separates three cun below the knee, descends to enter the lateral space of the middle toe. Another branch separates from the dorsum of the foot, enters the space between the great toe, and emerges at its tip.

When the meridian is affected, symptoms include aversion to cold with trembling, frequent stretching, yawning, and darkening of the facial complexion. Upon onset of the disease, the patient fears humans and fire, startles at the sound of wood, experiences palpitations, and desires to stay alone behind closed doors and windows. In severe cases, the patient may climb high to sing, discard clothes, and run. Abdominal rumbling and distension occur, constituting Yangming Jue syndrome. This meridian primarily governs diseases related to blood, including mania, malaria (some versions read convulsions), warm diseases, profuse sweating, nasal congestion or epistaxis, deviation of the mouth and eye, tight lips, neck swelling, throat obstruction, massive abdominal edema, and pain in the knee patella. Pain extends along the chest, breast, inguinal region, thigh, Futu, lateral tibia, and dorsum of the foot, with dysfunction of the middle toe.

When Qi is abundant, the anterior part of the body feels hot; regarding the Stomach, excess leads to efficient digestion, easy hunger, and yellow urine. When Qi is deficient, the anterior part of the body feels cold and shivering; cold in the Stomach leads to distension. In cases of abundance, the Renying pulse is three times larger than the Cunkou pulse; in cases of deficiency, the Renying pulse is smaller than the Cunkou pulse.