Any growth or mass on the skin or within the skin of dog is called lumps. These can be of different size and types. There are following possibilities
- Lipomas: These are most common types of lumps and are characterized by painless, soft and round shape. Usually located under the skin. they don't spread to other areas of the body. They don't harm the dog and not treated. But some large lipomas cause irritation and hence removed by the vet.
- Sebaceous cyst. These cysts are made up of dead cells, sweat or clear fluid. They also don't require treatment because they rupture themselves and healed. Sometimes they become infected and need medical attention to treat with antibiotics.
- Cancerous lumps. This can be identified by your vet.