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Pediatric Gan disease, with various discussions being complex and miscellaneous, is best explained by the theory of "Five Gan Syndromes." Its external manifestations vary in transmission, while internally, all belong to the Five Zang Organs.

The first is Liver Gan (Liver Syndrome). Symptoms include shaking the head and rubbing the eyes, a white membrane obscuring the pupils, excessive sweating over the whole body, a preference for sleeping face down covered, dryness and itching in the eyes, greenish-yellow complexion, upright and scorched hair, cyanotic veins and chest heat, abdominal accumulation, frequent diarrhea, progressive emaciation.

The second is Heart Gan (Heart Syndrome). Symptoms include high fever throughout the body, red cheeks and yellowish face, irritability, restlessness, fullness, and oppression in the chest, diaphragm, and epigastrium, sores on the mouth and tongue, night sweats with frequent frights, dysentery with pus and blood, and decline in spirit and vitality.

The third is Spleen Gan (Spleen Syndrome). Symptoms include an abdomen distended like a drum with visible veins above, panting and coarse breathing, heart and abdominal fullness and obstruction, frequent crying, coughing, and counterflow qi, indigestion of water and grain, dry lips and mouth, craving for eating dirt, unhappiness in mood, aversion to light and preference for darkness, sour-smelling diarrhea, internal consumption of muscle tissue, withered form and weak strength, and in severe cases, sinking of the large muscles.

The fourth is Lung Gan (Lung Syndrome). Symptoms include coughing and counterflow qi, scorched and falling skin and hair, throat discomfort, rubbing the nose and biting nails, sores in the mouth and nose, abdominal gas distension, refusal of milk and food, irregular large intestine function, intermittent diarrhea and dysentery, aversion to cold with trembling body, rice-like particles in stool, and profuse discharge of white watery fluid.

The fifth is Kidney Gan (Kidney Syndrome). Symptoms include heat in the upper part and cold in the lower part, alternating chills and fever, sores on the teeth and gums, scorched ears and chest heat, cold extremities, vomiting and counterflow qi with slippery diarrhea, sores in the lower region, prolapsed rectum that does not retract, frequent night crying, gradual heaviness and debility, and in severe cases, collapse of the prominent bones.

Pediatric Gan disease is similar to adult Lao Zhai (Consumption/Tuberculosis), hence also called Gan Lao (Gan Consumption). Adult Lao arises from Kidney deficiency and depletion of essence and marrow; Pediatric Gan arises from Spleen deficiency and loss of Jin-Ye (Body Fluids). Prolonged illness transmits through the organs, damaging all Five Zang Organs. Adult Lao presents with emaciated bones and depleted Qi; Pediatric Gan presents with a distended abdomen and weakened Shen (Spirit). This difference stems from the initial stage of organ transmission. However, after prolonged transmission, damage to all Five Zang Organs becomes identical. Thus, the five types of wasting are described in classics: First wasting affects skin and hair, causing skin contraction and hair loss, corresponding to the Lung. Second wasting affects muscles, causing muscle emaciation and inability of food to nourish muscles, corresponding to the Spleen. Third wasting affects blood vessels, causing deficient vessels unable to nourish organs, corresponding to the Heart. Fourth wasting affects sinews, causing flaccid sinews unable to hold or move, corresponding to the Liver. Fifth wasting affects bones, causing bone atrophy and inability to rise from bed, corresponding to the Kidney. When disease reaches its extreme, large muscles sink and prominent bones collapse, leading to death.

Most pediatric Gan diseases are caused by improper use of purgatives. Children's organs are tender and soft, prone to both deficiency and excess. Misusing purgation for any disease leads to Spleen and Stomach weakness and internal consumption of fluids, resulting in Gan. For example, tidal fever occurring at noon indicates Spleen deficiency and Heart excess. (Noon is when Heart Qi dominates.) The heat originates internally. The treatment should first tonify the Liver (Mother of Heart). Once Liver Qi is sufficient, then drain the Heart. With maternal support, Heart Qi balances, and tidal fever resolves. Physicians seeing tidal fever may wrongly assume excess and use cold purgatives like Da Huang (Rhei Radix et Rhizoma) and Ya Xiao (Natrii Sulfas). Excessive purgation depletes fluids, gradually forming Gan. Similarly, for Pi Bing (Mass/Abdominal Lump) with chills, fever, thirst, and hard painful masses under the ribs, treatment should slowly dissipate the mass. Physicians seeing a mass may use harsh purgatives like Ba Dou (Crotonis Fructus) and Nao Sha (Natrii Chloridi Impurus). Excessive purgation consumes fluids, gradually forming Gan. Also, after five to six days of Shang Han (Cold Damage), if purgatives are used excessively for indicated symptoms, Spleen and Stomach become weak and fluids deplete, leading to incessant thirst and internal heat. Heat consumes fluids internally, muscles waste externally, causing emaciation. Other pathogens interfere, causing myriad symptom changes, also forming Gan. Prolonged vomiting and diarrhea depleting fluids can also cause Gan. Excessive intake of rich and sweet foods causes stagnation, generating heat and consuming fluids, leading to Gan. Hence, excessive sweet flavors cause Gan. The *Sheng Ji Jing* states: "Excess of rich and sweet foods leads to accumulation and Gan Yellow," which is correct. Thus, various diseases can lead to Gan.

Symptoms of Gan due to Sweet flavor include dry and tired eyes, possible white membranes, pale lips and mouth, yellowish-black complexion, eating dirt and uncooked rice, preference for lying on cold ground, scabies, tinea, and scalp sores, profuse diarrhea with green, white, or yellow froth, dysentery with pus and blood, abdominal fullness, panting, and coughing, sores in ears and nose, sparse hair forming tufts, large head with thin neck, large abdomen with exposed blue veins, drooping hands and feet, emaciation with drinking, flaccid sinews and heavy bones, poor physical condition and weakness. These stem from Spleen deficiency and fluid loss, transmitting over time. Slow transmission results in Man Gan (Chronic Gan); fast transmission results in Ji Gan (Acute Gan). One must distinguish between Cold/Hot and Fat/Thin syndromes. Fat-Hot Gan arises from eating rich/sweet foods, accumulating heat, often occurring early. Qian Yi treats this with Huang Lian Wan (Coptis Pill). Thin-Cold Gan arises from misused purgation, dysentery, or raw/cold foods, often occurring late. Qian Yi treats this with Mu Xiang Wan (Aucklandia Pill). To treat both Cold and Hot Gan generally, Qian Yi uses Ru Sheng Wan (Like Sage Pill). In treating pediatric diseases, one must assess deficiency/excess and cold/heat, avoiding reckless purgation to prevent transforming into Gan. If early-stage Spleen deficiency causes fluid shortage, thirst, and desire to drink, generate Stomach fluids by decocting and administering Qian Yi's Bai Zhu San (Atractylodes Macrocephala Powder). More is better. These formulas by Qian Yi are recorded in his collected works.

Another syndrome features abdominal masses, emaciation, scorched and sparse hair, abdominal distension with panting, cold dysentery with rectal prolapse, and vomiting upon eating. Commonly called "Wu Gu" (Guilty Innocent). The *Bao Jian* cites *Xuan Zhong Ji*, describing a bird named Gu Hu or Jun Xing Gui, which flies at night. If children's clothes are exposed, the bird lands on them, causing this disease. I have searched obscure texts for over ten years without finding the source of *Xuan Zhong Ji*. Since the bird is said to fly at night, it must have a shape, yet no one has ever seen it. This is likely a fabrication by shamans using ghost names to deceive. This syndrome is rare now; clinically, it is actually a manifestation of Gan disease. I expose this heresy to dispel confusion.