[3][4] Simple traces of mucus are not an expression of any pathology, because it is normal physiology, while an excessive quantity of the substance could simply arise from excessive stimulation of the anus.
Excessive emission of mucus without defecation can indicate anal lesions, even of tumor origin, or pathologies such as colitis, ulcerative colitis, intestinal dysbiosis, gonorrhea, food intolerances, chronic constipation, etc.
In this case, in addition to tumor masses, there may be chronic inflammatory diseases, or the presence of mucus could occur due to constipation, hemorrhoids, anal fissures, mucorectal prolapses, rectocele.
[5] A study on a 36-year-old woman with solitary rectal ulcer syndrome also shows that the patient presents with mucorrhea.
[6] Irritable bowel syndrome (IBS) patients may also present with mucorrhoea.