As you are petting your dog or brushing it, you notice (and feel) a sizeable lump on its body. The lump will most likely feel very hard, and you are confident that you would have felt that lump before, so you assume it is a recent lump.

There is absolutely no way for you to know whether this is a cancerous lump, or just a bug bite or a sting from a bug. Only your vet will be able to examine this lump and either be able to explain what the lump is without further testing, or further tests will be required to rule out simplistic and obvious causes. Do not procrastinate, as this lump may actually be something, or it may be nothing, but do have your dog examined by your vet to be completely sure either way.

Follow the link to the website for the animal hospital Montgomery County for more.