Medically reviewed by Maria M. LoTempio, MD Swollen lips may be caused by allergic reactions, injuries, chapping or sunburn, infections, and cysts called mucoceles. The swelling comes from either ...

This can be a strong indicator of poor health. Swollen lips are sometimes caused by Crohn's disease, which normally causes swelling in the bowel but can inflame the lymph ducts at any point in the ...

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