Changes in the appearance of the nipples

Changes in the appearance of the nipples can include redness, scaliness, flaking, cracking, or itching. In some cases, the nipples may become inverted or flattened. In women, nipples may become larger or more pronounced. In men, nipples may become smaller or less noticeable. These changes can develop over time, or may occur suddenly. They can be caused by a variety of factors, including hormonal changes, skin irritation, or an underlying medical condition.