Are breast-cancer lumps painful to have?

Not usually: Bryce: a lump that is close to the nipple where a lot of nerve endings are located can be painful and one closer to the armpit where there are also a lot of nerves can be painful. A lump in the main part of the breast is usually painless, hard and non-movable. Any lump should be checked out though. I recommend you call it to your doctor's attention so that appropriate testing can be done.