Abstract: Childhood diarrhea is a prevalent and recurrent pediatric disease that can result in malnutrition and directly impacts the growth and development of children.It is one of the four major illnesses identified by the Ministry of Health which especially requires prevention and treatment.Professor Qin Yanhong thinks that the internal cause of diarrhea is asthenic susceptibility of spleen，which leads to the endogenous dampness，which interact with each other.If the treatment is not appropriate，the spleen and kidney Yang may fail over time，and the prognosis is poor.Combining Qian Yi′s academic thought of "spleen-dominating-trapped" with clinical experience，Prof.Qin Yanhong proposes that "spleen being trapped and wetness winning" is the key pathogenesis of infantile diarrhea.Prof.Qin develops the self-made decoction to regulate spleen by warming yang and activating the spleen，which has a good clinical effect.The purpose of this article is to introduce Professor Qin Yanhong′s understanding of the pathogenesis of infantile diarrhea "spleen being trapped wetness winning",the professor′s further development of the theory of activating spleen,as well as Professor Qin Yanhong′s clinical experience in the treatment of infantile diarrhea by using decoction for warming,combining the internal with the external treatment and by prevention and regulation.The attached case is provided for the purpose of verification.

Key words:

Diarrhea, Warming yang and activating the spleen, Child