YourLinkGoesHere I have been trying to figure out what could be wrong with my chickens and someone suggested it could be mites. Here is a description of what my chickens are showing: swollen vent, feathers missing around vent, yellow mucus like material coming out of vent, struggling to use bathroom. Does anyone think that this could be the problem? Advice is greatly appreciated. UPDATE: Later today she started to act like she was pushing and a red bulge would come out and go back in Now I'm starting to think it could be a prolapse vent.