Lips swollen for no reason to consider with trauma, allergies, but also may be the emergence of acute lipitis and other diseases.
1. Trauma, if the lips are suddenly hit by external forces, may lead to soft tissue damage, tissue fluid leakage, so this symptom will appear.
2. Allergy, if the usual contact with allergy-prone substances or eat allergy-prone food and drugs may lead to skin allergic reactions, so the lips will appear to swell up for no reason.
3. Acute lipitis, some patients with acute lipitis lip tissue lesions, may appear erosion, flaking, secretion oozing and other symptoms, but also accompanied by swelling.
Usually need to observe more changes in the lips, if there is obvious discomfort, it is recommended to consult a doctor as soon as possible.