Swollen lips may be caused by allergic reactions, injuries, chapping or sunburn, infections, and cysts called mucoceles. The swelling comes from either inflammation or built-up fluid under the skin.

Angioedema, a type of swelling that affects the skin and tissues of the body, commonly affects the lips. Angioedema is a type of swelling that affects the deep tissues of the skin and other systems.

Orofacial granulomatosis is a rare skin condition that causes swelling in the face, mouth, or lips. The cause is often unknown, but experts think it’s related to allergies or an immune reaction.

Your lips can reveal significant insights into your overall health. Changes in their color, texture, or appearance, such as paleness, dryness, swelling, sores, or cracks, may indicate underlying ...