Blepharitis, or blepharitis, is usually caused by Staphylococcus aureus infection. The main triggering factors are poor personal hygiene, environmental factors, dietary factors, and poorly functioning blepharoplasts, and so on, and if a patient has any of these triggers, he or she is prone to blepharitis. 1. Poor personal hygiene: patients rubbing or wiping their eyes with their hands or other things can easily cause bacteria to enter the eyes and become infected, and make-up or irregular wearing of contact lenses can also easily cause infections in the eye tissues, thus forming blepharitis. 2. Environmental factors: If the patient lives or works in an environment with a lot of dust, sand and wind, it is easy for bacteria to enter the eyes and cause infection, leading to blepharitis. 3. Dietary factors: If the patient often eats spicy and stimulating food, smoking and drinking too much, it is easy to make the secretion function of the blepharoplasty gland abnormal, leading to inflammation and blepharitis. 4. Blepharoplasty: Some patients have high oil secretion or are irritable, which can also cause high secretion of the glands, blocking the blepharoplasty glands, thus causing blepharitis. It is recommended that patients with blepharitis visit a hospital in a timely manner to assess their condition and follow the doctor’s instructions for treatment to avoid delays.