Hello Peter, 

A warm welcome to Cancer Chat! I think it would be a good idea to bring this up with your GP. Even though these are not painful and don't seem to last very long, it's always best to get things like this looked at even if just for reassurance. Your doctor will be in the best position to tell you more about what these might be and whether they are linked to the stoma reversal. 

I hope you will hear from others too who have also had this before and that they will share their experience with you. 

Best wishes, 

Lucie, Cancer Chat Moderator