The possible hazards of wearing lipstick every day include: triggering allergic reactions, inducing keratitis, and carcinogenicity of some low-quality lipsticks. 1. Trigger allergic reactions: lipstick contains a large number of chemicals and its chemical composition is usually more complex, the choice of lipstick is not appropriate, may cause cosmetics dermatitis and other allergic reactions, so that the lips, lips and other parts of redness, swelling, pimples, pimples and other symptoms. 2. induced keratitis: some components of lipstick have a strong adsorption capacity, can be dust in the air, bacteria, viruses and other substances adsorbed to the mucous membrane of the lips, daily lipstick will increase the adsorption rate of these foreign bodies, which may cause patients to occur keratitis, labyrinthitis, and other local infections of the mucous membrane of the lips. 3. Some poor-quality lipsticks may be carcinogenic: the chemical composition of lipsticks is relatively complex, and some poor-quality lipsticks may contain preservatives, antioxidants, coal tar and other substances, which may be carcinogenic, and may increase the incidence of cancer if such poor-quality lipsticks are applied every day. In summary, it is recommended that patients minimize the frequency of using lipstick in daily life, and if they need to apply lipstick, they should try to use lipsticks with guaranteed quality, so as to minimize the threat to their health caused by lipstick.