Syndrome differentiation and treatment
The therapeutic principle of infantile malnutrition mainly lies in protecting the spleen and stomach. For infantile qi malnutrition, the principle is chiefly regulating the middle energizer; for infantile stagnation malnutrition, the principle mainly eliminating stagnation or eliminating stagnation in combination with tonification; for infantile dry malnutrition, the principle chiefly tonification.

1. Mild infantile malnutrition  
Main symptoms and signs: Emaciation, sallow or lustreless complexion, declining appetite or polyorexia, listlessness, susceptibility to loss of temper, loose stools or constipation, pale tongue with thin and whitish, or yellowish fur and thready pulse.    
Therapeutic methods: Regulating the spleen and stomach , supplementing qi to promote transportation.

2. Severe infantile malnutrition
Main symptoms and signs: Marked emaciation, abdominal distension, exposure of bluish tendons in severe cases, sallow complexion, yellowish and dry hair with knots, poor appetite or paroxia, or polyphagia, profuse stool, listlessness or dysphoria and impatience, pale tongue with thin and greasy fur, thready and slippery pulse. 
Therapeutic methods: Removing stagnation, regulating the spleen and stomach and clearing away heat.

3. Infantile dry malnutrition
Main symptoms and signs: Extreme emaciation, dry and wrinkled skin, sunken abdomen like a boat, dried and withered hair, cry without force, dry mouth, scanty lacrimation, loss of appetite, listlessness, loose stools, red and tender tongue with a little fur and fluid, or glossy tongue, thready and weak pulse.  
Therapeutic methods: Supplementing qi and nourishing blood.
　　

4. Infantile eye malnutrition
Main symptoms and signs: Blurred vision at dusk or in dark places at the late stage, xerophthalmia, photophobia, pancorneal opacity and nebula in severe cases.
Therapeutic method: Nourishing the liver to improve visual acuity.