There is yellow pus in the anus that does not smell, which may be related to anal sphincter relaxation, hemorrhoids, intestinal polyps and other conditions. 1. Anal sphincter relaxation: due to age or disease and other factors, may lead to anal sphincter relaxation, so that the anus can not be normally closed tightly, some intestinal tissues inside the anus liquid will seep out. If there is no feces accompanied by overflow, the intestinal tissue liquid generally has no obvious odor. 2. Hemorrhoids: If the patient has internal hemorrhoids, with the increase of hemorrhoids and prolapse of hemorrhoidal nuclei, the hemorrhoidal nuclei will bring out the mucus and secretion inside the anus, resulting in yellow pus around the anus, with no obvious odor. 3. Intestinal polyps: if the intestinal polyps increase prolapse, will also bring out the tissue fluid inside the anus, residual in the anus, resulting in the anus appear moist sticky feeling. It is recommended that patients with the above symptoms go to the hospital in time for a detailed examination and differential diagnosis by a professional doctor to give reasonable treatment as soon as possible.