Anal smearing with sesame oil can lubricate the intestines and help improve constipation. The appearance of constipation and feces is too dry, intestinal peristalsis is too slow, in the relief of constipation can be improved through the anal smear method of sesame oil. Fragrance oil itself has the effect of lubricating the intestinal tract, after applying in the anus, it can have the effect of lubricating the anal canal and rectum, so it can assist the discharge of feces in the rectum. Fragrance oil can also help to soften the feces after contact with the feces, reducing the infringement of the rectal mucosa caused by the fecal discharge process. The anus does not need to pass through the digestive system, so it does not aggravate the digestive system. The oil in the anus will flow out with the feces, so it will not stay in the intestines for a long time. For people with serious constipation, they should pay attention to eating high-fiber food in normal times to promote intestinal peristalsis to improve the symptoms of constipation.