Our bodies undergo a series of natural changes as we age-externally and internally. Our skin cells divide more slowly and skin begins to thin. Skin retains less moisture, causing it to become dry, scaly, and appear wrinkled. It loses its elasticity and instead of springing back, starts to sag. The skin's ability to repair itself diminishes, and wounds are slower to heal. Blood vessels also become more fragile and it becomes more common for the elderly to bruise. Certain conditions, diseases, or medications also play a role in elderly bruising.