Fish Bubble

[MiddaHB]

I'm fairly new to the fish game. I've had my 10 gal tank going since Easter of this year. Today my balloon belly molly all of a sudden has what looks like full bubbles coming out of its butt area. Not sure what to do about this one. Any help would be phenomenal. Not acting any different and still eating.

 

[the_lock_man]

Looks like a prolapse to me. Not a huge amount you can do, apart from keep the water pristine clean (ie 20% water changes daily) and hope it sorts itself.