What's this red raised lump on my dog's neck under his collar?
Updated On September 23rd, 2025
Pet's info: Dog | Mixed Breed Large (61lb +) | Male | neutered | 80 lbs
My 3yr old dog has this raised red lump by his neck, just under his collar. What could this be?
3 Answers
Most Helpful Answer
Published on October 22nd, 2023
Hello, thank you for using Petco Pet Education Center, formerly Petcoach. Sorry to hear that Link has this issue. This appears to be a cyst but it could also be a plugged hair follicle, an abscess or even a tumor. There is no way to know just by looking at it, unfortunately. If this was my dog I would not be overly worried at this point. I would leave the collar off, if possible, and only put it on as needed to prevent it from rubbing on it and just monitor it. If after another 7-10 days it does not resolve or it gets larger (or opens) then I suggest you take him to your vet for an exam. Don't put anything on it. Hope this helps. Best wishes.
3Pet Parents found this answer helpful
Related Answers from Veterinarians
-
Published on September 29th, 2019
It is most likely a cyst or a wart. Probably benign but since it is irritated/bleeding you should have your vet take a look at it. It's not an emergency just have him seen sometime in the next few days.
1Pet Parents found this answer helpful
-
Published on March 21st, 2019
It does look like a little wart which are usually nothing to worry about. However you cannot be sure by just looking, to know definitely what the lump is it would have to be tested. You can either go and have this done or monitor the lump for growth.
1Pet Parents found this answer helpful
My dog has a lump on the left side if his neck where his collar would go. He hasn't had any trouble eat or drinking yet, he seems to be in a great goofy mood like his normal self. Just worried about the lump.... what should I do
He has a knot in neck under his skin what to do with it he doesn't have a fever or anything else that I need to do
I have a male chichuahua where his collar goes around his neck on the spine part off to the side has a small lump that is dried out and the hair is thin and broke off what could this be and how to treat it
Found a raised reddish lump on dogs foreskin area
I was out of town for 5 days and my dog was under a friend's care. When I came back, I immediately noticed a lump/mass under his neck that is reddish in color. The skin isn't broken. What could this be? Was he harmed? He is eating normal and acting
Found this under my dogs collar, like on the center of his chest/neck. It’s hard for me to believe it has anything to do with his collar though, because it isn’t right at all and he only wears it when he’s outside… He has not lead on that he is injur
My dog has a huge lump on his neck. This is the first time I noticed it, i can tell it's itchy for him. It has a firm feeling to it, and I don't know what it is.
What is this bump on my dogs neck
Hi last week I noticed a lump on the back of my dogs neck and it's not causing her any pain but a clear lock it comes out if squeezed and her fur around it is scabby
I have an 11 year old shih tzu maltese. She's had this hard lump on her back for a while now, probably over a year. It got bigger over time. I saw a vet about it and her tendency to throw up (she's thrown up mucus for years, i believe due to anxiety.
Book an appointment with the pros – our expert vets are here to help.
