Lip swelling is caused by the primary inflammation or fluid accumulation under the skin of your lips.Many things can cause lip swelling, from minor skin diseases to severe allergies. healthline The main causes of swollen lips are:
Squeamishness
It is a severe allergic reaction that can cause swollen lips, and it can occur within minutes or more than half an hour after encountering the allergen. It is sometimes called anaphylactic shock because it causes the immune system to flood your body with chemicals that can make you go into shock..
Environmental sensitivity
You may have an allergic reaction to substances in the environment. They are often unavoidable and include pollen, mold spores, dust, and pet dander.
Food allergy
Food allergies are a common cause of swollen lips, according to the American College of Allergy, Asthma & Immunology (ACAAI) About 4 percent of adults and up to 6 percent of children have a food allergy. The swelling usually starts as soon as you eat something you are allergic to.
Other allergies
Insect bites or stings may also cause swollen lips. If you are allergic to bees, for example, you may have swelling all over your body after you have been stung.
Angioedema
Angioedema is a short-term condition that causes swelling deep under the skin, which can be caused by allergies, non-allergic drug reactions, or genetic conditions.
Glandular cheilitis
Glandular cheilitis is an inflammatory condition that affects only the lips and, according to the Genetic and Rare Diseases Information Center, is more common in men. Doctors are not sure what causes it, but it appears to be linked to UV exposure, lip injuries, and smoking..
– .