What's this hard lump on my 1-week-old puppy's neck and jaw?

Hello, poor Miko. That looks like it is more associated with his neck than jaw. I would be concerned about a potential infection (abscess) especially if mom has snapped at the puppies. Otherwise It could be various other things. I would have your veterinarian take a look at it and see if he feels like it is attached to any of the structure of the neck. A neck ultrasound might buy you the best detail and information. Hope this helps.

From the location my best guess would be an enlarged lymph node - this could be confirmed on a physical exam performed by your vet. Lymph nodes are where his immune system is stored and can become enlarged when Luicus is fighting an infection, or inflammation. It may be best to have him examined tomorrow to check he's not running a fever.

Oh no, that's not good! It's not normal that Puppy has a lot of swelling on the side of her neck, and she could have injured herself causing the swelling. There could be damage to the internal structure of her neck, and she should be evaluated by a vet immediately. I would take Puppy, her littermates, and her mother into an ER vet clinic or find a vet on call to see them now.

Poor baby! This could be a serious problem like a bacterial infection caused by strep called strangles or just a simple infection. I would strongly recommend to have your vet take a look at him soon before it gets worse. This can be easily treated if caught early. I hope this helps!

Please do not give Bandit anymore ibuprofen. This medication can be very toxic to dogs. The swelling could be from trauma or infection. Ideally, he should be examined by your veterinarian for confirmation and treatment. Antibiotics may be indicated for infection and appropriate antiinflammatories can be dispensed as well.

This could be an abscess or fluid pocket or just a swelling. I suggest you have this examined by a veterinarian. It will need to be drained by a vet if an abscess. Excessive swelling in this area could also be caused by muscle damage or similar conditions. Your puppy would then need anti-inflammatory medications, possibly pain medication and other medications depending on the cause.

This lump in your puppy’s skin is probably nothing to worry about. It could be from an insect bite or sting or may be a reaction to a vaccine he had in that area. Keep an eye on it for now. If it becomes larger, painful, or red, then take him to your vet right away. Or if he starts acting lethargic, vomits/has diarrhea or stops wanting to eat, you should take him to be checked out. I hope this helps. Thanks for using Petco Pet Education Center, formerly Petcoach. Best of luck.