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My puppy has a sore, draining lump on her head. What should I do?

Updated On September 23rd, 2025

My boxer puppy recently came to me with a small knot on her head, I thought she had just bumped it. The knot has grown some and it's sore. It is now draining some kind of bloody mucus from it. I can tell her neck is sore as well. Cognitively she is doing everything fine but I am worried about her. What do you think?

1 Answer

Most Helpful Answer

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Answered By Destini R. Holloway, DVM

Veterinarian

Published on March 11th, 2017

Poor puppy. : ( It sounds like your pet developed an abscess (bacterial infected pocket) on the top of her head. These are caused by trauma or punctures to the skin that introduced bacteria just underneath the skin, which in turn lead to pus encapsulated under the skin. She needs to have this abscess completely drained by your vet and placed on oral antibiotics for roughly 10 days. Her neck may be sore too because her lymph node is located in this area and it may be swollen because it is trying to drain this infected area. Take her in to the vet soon for treatment and she should be much improved within a few days, once she starts her antibiotics. Best wishes.

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