Syndrome differentiation and treatment
The treatment of aplastic anemia should follow the principle of "treating secondary symptoms for emergence and seeking the root cause of disease for the treatment of a mild disorder". In treating acute aplastic anemia (syndrome of consumed bone marrow due to warm-heat pathogen), hemorrhage and infection should be first managed. Importance should be attached to clearing away heat and removing toxin, cooling blood and checking hemorrhage to treat secondary symptoms. When the disease is stable, methods of tonifying the spleen and kidney, supplementing qi and nourishing blood are applied to eliminate the root causes of the disease. When treating chronic aplastic anemia (syndromes of yin deficiency of the kidney and yang deficiency of the kidney), emphasis should be placed on tonifying the kidney to replenish renal essence, supplementing qi and nourishing blood, removing blood stasis to promote blood circulation.

1. Consumed bone marrow due to warm-heat pathogen  
Main symptoms and signs: Persistent high fever with thirst, sweating without the subsidence of fever, profuse gingival and nasal hemorrhage with purple colour, large patches of purple subcutaneous ecchymosis, oral ulceration, lingual bloody bulla, hematuria, hematochezia, pale tongue with yellowish, blackish and greasy fur, fulllarge-rapid and swift pulse.  
Therapeutic methods: Cooling blood and removing toxin.

2. Yin deficiency of the kidney     
Main symptoms and signs: Sallow complexion, feverish palms and soles, hectic fever, night sweat, marked  nasal, gingival and subcutaneous bleeding, dizziness, tinnitus or low fever, red tongue with a little fur, thready  and rapid pulse.
Therapeutic methods: Nourishing yin and tonifying the kidney.

3. Yang deficiency of the kidney 
Main symptoms and signs: Pale complexion, aversion to cold, cold limbs, spontaneous sweating, loose stools, inapparent hemorrhage, profuse nocturia, pale and enlarged tongue with marginal dental marks, deep and thready pulse.
Therapeutic methods: Warming and tonifying the kidney yang and supplementing qi to promote blood production.