2. Spleen deficiency generally refers to a series of pathological phenomena and syndromes of spleen physiological dysfunction caused by spleen deficiency. Including spleen-qi deficiency, spleen-yang deficiency, stagnation of middle qi, spleen failing to control blood and other syndromes. The main clinical manifestations are vomiting, diarrhea, edema, bleeding, amenorrhea, leucorrhea, cold limbs and salivation in children. Strengthening spleen and benefiting qi is the main treatment.