Cyst Burst Dog. In very young dogs, sebaceous cysts will usually appear on the top of their heads. If your dog's cyst ruptures, it can cause secondary infections, become inflamed and red, and ooze greasy or cheesy matter.

9 my 7 year old dog had a cyst on her side it has now burst i; What does a ruptured cyst look like on a dog? There are actually 3 holes.i'm questioning whether one of them needs a stitch, but i'm not totally convinced (we've been through this twice before).