Functional constipation(FC)is a common gastrointestinal motility disorder,and clinical treatment often focu-ses on promoting bowel movements and obstruction,but there is insufficient exploration of qi stagnation.This article was based on the theory of"Five Stagnation"in the Huangdi Neijing,systematically explored the intrinsic connection between the patho-logical stagnation state of the imbalance of qi,blood,yin and yang in the five internal organs and functional constipation.With the core of the five methods of reaching(Da),releasing(Fa),draining(Duo),discharging(Xie),and breaking(Zhe),it provid-ed a holistic guidance for the diagnosis and treatment of functional constipation in traditional Chinese medicine,proposed the treatment concept of"regulating stagnation before unblocking the bowels and regulated the internal organs when treating the intestines",broadening the diagnosis and treatment ideas of functional constipation.