My dad has this lump on his head and it's getting bigger... does anyone know what this might mean? Could it be related to cancer? If not, could it be something else that's serious?

Any unexplained lump, especially one that keeps getting bigger, should be checked out. There are a number of things it could be, including but certainly not limited to cancer. Please urge your father to see a doctor as soon as possible.

Ruth

Needs to be checked but might just be cysts, I have lots on my head and they get bigger and then seem to shink a little. All lumps need to be checked by a Dr.