Dampness with mucus in the anus is mostly caused by hemorrhoids, constipation and inflammation in the anal area. 1. Hemorrhoids: Whether it is internal hemorrhoids, external hemorrhoids or mixed hemorrhoids, when there is a long-term history of the disease, accompanied by chronic inflammation and prolapse, it will lead to the mucous membrane at the anus broken, outflow of mucus, and the feeling of dampness. 2. Constipation: If there is chronic constipation due to eating habits, defecation habits and other factors, the mucous membrane will also be damaged due to the long defecation time each time, and there will be this kind of symptom that the anus is moist with mucous. 3. anal inflammation: may be due to sinusitis, or anal fistula, as well as anal fistula wound infection after surgery due to inflammation, the phenomenon of anal moisture with mucus. Anal moisture with mucus, it is recommended that the patient timely consultation in the regular hospital, under the guidance of a professional physician to carry out the appropriate examination, to give diagnosis and targeted treatment, so as not to delay the condition.