Breast cancer generally is painless, early stages present as a painless, solitary, small lump that is hard and has an uneven surface, with unclear boundaries with the surrounding tissue and is difficult to move within the breast. It is usually discovered accidentally by the patient or while bathing. As breast cancer continues to grow, it invades the Cooper's ligaments, causing contraction, hence the skin over the lump often appears puckered, a sign commonly referred to as dimpling, indicative of early-stage breast cancer. As the cancer progresses, it often causes the breast to shrink and harden, elevates the nipple, and may involve the milk ducts, leading to nipple retraction or indentation. It can also significantly increase in size within months, causing the affected breast to become larger and protrude. Breast cancer, invading the chest muscles and fascia, may fix the lump to the chest wall, making it difficult to move.