an unusual one ! Not common at all. All I can say (pure guess, mind
) is that if you can control the urgency, your rectum is obviously doing its work as an...
well, think airlock, but with a different substance - and so it is not something to worry about
. At worst it is fluid leaking into the rectum as a result of inflammation higher up in the gut causing electrolytic imbalance, which is what causes diarrhoea to be so watery.
That's just a guess, mind. My problems tend to often affect the same area, but it's not a symptom I've ever had, or remember reading about