A swollen bag in the middle of the upper lip may be caused by mosquito bites, allergies, angioneurotic edema and other factors.
1. Mosquito bites: In daily life for a long time in a place with more mosquitoes, it may lead to the lips being bitten by mosquitoes. As the saliva of mosquitoes contains certain toxins, mosquitoes will be injected into the skin through the mouthpiece, resulting in the phenomenon of swollen upper lip.
2. Allergy: In daily life, when the upper lip encounters allergens, an allergic reaction may occur, resulting in the phenomenon of swollen upper lip.
3. Angioneurotic edema: usually due to infection, food and other factors resulting in limited edema. It often occurs in the lips, eyes and other parts of the body, and clinical symptoms are often manifested as localized edema.
In daily life, there is a bag swollen in the middle of the upper lip may also have other causes, such as tumors, lip cysts, etc., should go to the hospital in time for examination and treatment under the guidance of the doctor.