This topic is about experiencing a sudden increase in mucus from the residual rectum, 12 years after having a colostomy due to cancer. The person has noticed this change after engaging in more vigorous exercise than usual, although their diet has remained the same. They are wondering if this increase in mucus is something to worry about. Here are some helpful insights and advice:

- It's not uncommon to see a short-term increase in rectal mucus after engaging in strenuous or unfamiliar physical activities. Others have experienced similar patterns, and in some cases, even noticed a small amount of blood after extreme exertion.

- The rectal lining continues to produce mucus, so periodic mucus release from the residual rectum is generally expected. It's normal for the amount and frequency to vary over time.

- If the mucus discharge becomes excessive, persistent, or is accompanied by blood or other concerning symptoms, it's best to consult a physician. They can perform an endoscopic examination of the remaining sigmoid or rectum, even after a colostomy, to ensure everything is okay.