Cancerous lumps are usually hard, painless and immovable. Cysts or fatty lumps etc are usually slightly softer to touch and can move around. This has come from experience - I found a rubbery, painless moveable lump in my neck which was not cancer.

Is cancerous lump movable?

Breast cancer lumps tend to be immoveable. They're usually hard, have irregular edges, and are painless. But that's not always the case. Some breast cancer lumps are painful and they can sometimes be soft, round, or moveable.

Do cancerous nodules move?

Do breast cancer lumps move? Most lumps will be movable within the breast tissue on examination, but breast lumps typically do not “move” around the breast. However, sometimes a breast lump will be fixed, or stuck, to the chest wall.