Swollen lips are generally not related to kidneys. Swollen lips are mainly considered to have periodontitis, allergies, chronic lipitis and other reasons, it is recommended to timely consultation and treatment. 1. Periodontitis: When there is periodontitis, especially acute periodontitis, it can cause the mucous membrane of the vestibular sulcus to bulge, resulting in swollen lips, and it is recommended to go to the dentist for dental care and medication to relieve it. 2. Allergy: when consuming certain allergic foods, it can cause angioneurotic edema, if serious, anti-allergy treatment can be carried out, such as cetirizine, vitamin C and so on. 3. Chronic lipitis: patients with chronic lipitis will also have swollen lips during the acute attack, and can use gentamicin ophthalmic ointment, tretinoin cream and other medications to alleviate the symptoms. When the phenomenon of lip swelling discomfort, avoid eating spicy stimulating food, to timely regular hospital medical treatment, avoid blindly using drugs.