A previously healthy, 14-year-old girl is admitted to the hospital after complaints of painful swelling of her lower lip, with periodic spotty, blood-tinged drainage from several discrete areas with ...

Lips can become swollen if fluid builds up in the skin tissue or if there is underlying inflammation. Causes include allergic reactions, angioedema, and injuries. Swollen lips have a range of causes, ...

Yesterday afternoon, my lower lip started swelling up on the right side. That was weird enough, since I couldn't think of any cause for it, but then the swelling started to move. By the time we went ...