There is no best probiotic for constipation. Bifidobacteria, lactobacilli, bifidobacteria and other probiotics are commonly used for constipation caused by intestinal flora disorders. 1. Bifidobacterium: It is a kind of probiotics inhabiting in the intestinal tract, which can fight against harmful intestinal bacteria, inhibit the absorption of intestinal corruption and harmful substances, promote intestinal peristalsis and help relieve constipation. 2. Lactobacillus: It is an active probiotic that is beneficial to human body, which can promote the formation of digestive enzymes, increase the absorption and digestive capacity of the stomach and intestine, and improve the intestinal environment, so as to achieve the effect of relieving constipation. 3. Dielian Bacteria: Dielian Bacteria contains enterococci and bacillus subtilis, which can help the human body directly replenish live bacteria, inhibit the overpopulation of harmful intestinal bacteria, so as to adjust the intestinal flora and improve the symptoms of constipation. The above medications should be used under the guidance of a medical professional. Constipation may also be caused by other reasons, at this time taking probiotics is not necessarily effective, taking probiotics can not alleviate constipation can go to a regular hospital, under the guidance of a professional physician for treatment.