Ulcerative colitis（ UC） is a chronic repeated nonspecific inflammatory disease. The root cause is Yang deficiency of spleen and kidney

with the superficial pathogenic factors of dampness

cold

heat

phlegm

stasis

etc. Disease location is large intestine

relating to spleen

stomach

liver and lung. Expressed characteristics is root deficiency

superficial excess

mix of cold and heat

imbalance of Yin and Yang and Qi-movement disturbance.The author holds that reinforcing Yang

purging turbidity and dispelling blood stasis method should be applied to treat this disease. Based on reinforcing Yang of spleen and kidney

treat incidental factors by catharsis

purging turbidity

promoting Qi and blood circulation

dispelling blood stasis and analgesia.