The reasons why there is always mucus coming out of the stool when urinating include hemorrhoids, sinusitis, proctitis, rectal polyps and so on. 1. hemorrhoids: if the patient has hemorrhoids, then the patient’s anus is not closed tightly, in the urine due to the contraction of the anal muscles can lead to mucus out of the phenomenon. 2. Sinusitis: due to various factors leading to inflammation of the sinuses, the inflammatory factor triggers the anal glands will secrete a large amount of anal fluid, so there is always mucus out of the stool when urinating. 3. Proctitis: because of a variety of factors triggered by inflammation of the rectal lining, resulting in diarrhea, leading to increased mucus in the stool, so there is always mucus in the stool when urinating. 4. Rectal polyps: when a variety of factors cause a large number of rectal mucosal cell proliferation, at this time there can be mucus stool, so there will be mucus out of the stool phenomenon. Finally, there is always stool mucus when urinating phenomenon, please consult a doctor in time.