With the improvement of living standards,the accelerating rhythm of life,the growth of age,and the change of diet structure,the incidence of constipation is increasing. Constipation can cause serious damage to the health and mind of patients and even with many complications. On the whole,constipation causes gut micro ecological change,i. e. the decrease of the type and number of probiotics,while harmful bacteria or conditional pathogenic bactorial are increasing significantly. Live probiotics has a significant effect in alleviating symptoms,curing constipation and restoring intestinal normal f...