There may be a certain foreign body sensation when Keserol is inserted, and a minority of people may experience stomach discomfort, but most patients will not experience pain and other situations. The main ingredient of keserol is glycerin, belongs to the local lubrication laxative drugs, when using the drug through the anus into the rectum, stimulate the intestinal mucosa, the rectum will have a certain expansion, the rectum has a certain lubricating effect on rectal disease, can promote defecation, the side effects are generally relatively small, if the operation is not appropriate, some patients may experience stomach discomfort. Kerosene is not the only choice for the treatment of constipation, long-term use of Kerosene, can lead to anal sphincter dysfunction, voluntary defecation function is further weakened, therefore, it is necessary to choose reasonably under the advice and guidance of the doctor, to avoid leading to the aggravation of constipation, and other adverse effects on the body.