My dog has a hard, movable lump with yellow crust. What is it?

Question

My dog has a small lump the size of a 5 pence on her lower back under the sick. It is hard to touch however it is moveable and doesn't appear to be attached to anything. There is all so yellow crusty stuff around the lump however there doesn't see to be an opening. Do you have any idea what this could be? Pet's info: Dog | German Shepherd | Female | spayed | 5 years old

Jessica Keay, DVM · Accepted Answer

A small area like this could be inflammation as a result of an insect bite or wound, inflammation as a result of bacterial infection (though usually we would see more then just one lump) or a growth/tumor of the skin (we can have benign growths that don't cause any health concerns or growths that are malignant and require removal). Unfortunately without an exam and a sample (taken with a needle most often ) we can't tell you for certain the cause. If it isn't bothering your dog I would continue to monitor it daily. It is from an insect bite or wound it should resolve over the next couple weeks. If it is still there in a month or is increasing in size or changing appearance then a vet visit to investigate the area further is warranted.

My dog has a hard, movable lump with yellow crust. What is it?

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