There is no bone in the breast, the human breast is mainly formed by the breast as well as fatty tissue, lymphatic tissue, blood vessels, fibrous tissue, there are glands as well as ducts, the outermost layer belongs to the fatty tissue, behind the pectoralis major muscle will be the rib cage, there will be no bone tissue. The human breast is soft flesh to the touch, if it feels hard when touched and is not bone, it may be a small hard lump in the breast, most likely a breast fibroid, or most likely other conditions. At this point, the patient needs to go to the hospital for further examination, which may require surgical removal, and does not rule out a mastopexy situation.