This topic is about changes in mucus discharge color from the rectal stump after someone with a colostomy undergoes pelvic radiotherapy. The person is experiencing a significant amount of mucus discharge, which is new for them, and they are concerned about the color of the mucus.

Here are some helpful insights and advice:

1. Seek medical assessment: It's important to consult with your stoma or colorectal team or doctor if you notice any new or concerning discharge, especially if it is dark or blood-colored.

2. Understand the range of mucus colors: Mucus can vary in color and consistency, from clear to creamy, brown, or even forming hard lumps that look like feces. This variation is common and not necessarily a cause for alarm.

3. Possible reasons for dark-purple mucus: The deep-purple color might be due to old, long-stored blood or tissue being expelled as part of the healing process after radiotherapy.

4. Clearing excess mucus: Rectal irrigation can help flush out the mucus build-up, but be aware that the water used might continue to seep out for several days afterward.

5. Managing leakage:
- Using Tampax brand tampons can effectively absorb liquid mucus.
- Anal plugs designed for incontinence are less effective for mucus because they are made from non-porous materials that do not absorb fluid.