What this experience covers
This is a composite account of how runners manage their sport while dealing with an anal fissure. It draws from many anonymised stories and covers the range of experiences — from people who found running made things worse to those who continued throughout their fissure with minimal issues.
The pattern
The mixed picture
Running with a fissure is not straightforward. People describe a wide range of experiences:
- Some find running has no noticeable effect on their fissure — it neither helps nor worsens it
- Others describe running as aggravating — the impact, the movement, or the sweating increases discomfort
- A smaller group describes running as helpful — the movement promotes blood flow and the mental health benefits outweigh the physical discomfort
What tends to help
- Running on softer surfaces (trails, grass) rather than pavement
- Shorter, easier runs rather than long or intense sessions
- Running at times when fissure symptoms are lower — often later in the day rather than right after a bowel movement
- Wearing moisture-wicking, seamless underwear to reduce friction and sweat
- A sitz bath after running to counteract any irritation
What tends to make things worse
- Long runs that cause significant sweating in the perineal area
- Running immediately after a bowel movement when the sphincter is in spasm
- Tight or rough running clothing that creates friction
- Ignoring increased pain and pushing through
The decision
Most people describe a trial-and-error approach. They try a short, easy run and assess how the fissure responds in the following 24 hours. If there is no increase in pain or bleeding, they gradually increase. If there is, they scale back or switch to lower-impact activity like walking or swimming.
Everyone’s situation is different. If you want to talk through yours in a private, judgement-free space, our chat is here.
When to contact your doctor
Seek medical attention if you experience:
- Heavy or persistent bleeding that does not settle
- Severe pain that is getting worse rather than better
- Fever or signs of infection
- Symptoms that have not improved after 4 to 6 weeks of self-care