Hi there! I just got back from the vet and was told they may never go away. I wish I was told this the last time. They said it was normal and nothing to be concerned about. My vet said her dog is now 4 years old and you can still feel lumps. I guess some dogs they dissolve rather quickly while others dont. I still dont like it but nothing I can do. If you take your dog for a checkup please let me know what they say. I like comparing vets reasons. Never know when someone has made a mistake. Maybe I'm just paranoid but I cant help it. They are my babies. Thanks for posting your thought.