This topic is about someone who, five months after having a colostomy, experienced an unexpected bowel movement from the rectum. They have been walking about 8 kilometers (5 miles) each day and noticed a discharge that looked like stool but didn't have a fecal odor. They are curious if this is normal and if others have had similar experiences.

Here are some helpful insights and advice shared by others:

1. Small rectal discharges can be normal after a colostomy or ileostomy:
- It's common for people to have minor bowel movements occasionally, which can be due to mucus, shed cells, or bacterial activity in the unused part of the bowel.
- One person mentioned that their large bowel still fills with waste because of bacteria, and unless the volume or symptoms increase, it's usually not a concern.

2. The likely explanation is hardened mucus:
- Mucus can dry out, darken, and look like stool. It often becomes firm and takes on a darker "caramel" color.
- Starting a new exercise routine might change the consistency of the mucus, but similar discharges can happen even without changes in activity.

3. When to seek medical advice:
- If the frequency or volume of the discharge increases, or if there are symptoms like pain, cramping, or inflammation, it's important to contact a surgeon or stoma nurse.
- Doctors can provide treatments, such as medication or lavage, if rectal discharge becomes a problem.

4. Considerations for the rectal stump or Hartmann’s procedure:
- Even a short rectal stump continues to produce cells and mucus, which can build up and lead to cramping and a sudden small, liquid bowel movement.
- Some people experience overactive sphincter muscles after reversal attempts, and physiotherapy or treatments like Botox might be recommended, though results can vary.
- Many people with ostomies are not warned about these stump discharges, so it can be surprising, but it's usually harmless.

5. General reassurance:
- Many people emphasize that the described event seems normal and not something to worry about. It's advised to monitor the situation and consult healthcare providers for reassurance.