Patients with swollen eyelids and eye pain can be caused by blepharitis, eye trauma, conjunctivitis and other factors. 1. Blepharitis: Staphylococcus aureus and other pathogens infect the eyelid glands leading to acute suppurative inflammation, the patient may appear localized redness and swelling of the eyelids, burning, pain and other symptoms. 2. Ocular trauma: After the patient’s eye is traumatized, such as squeezing, bumping, etc., due to the local soft tissue damage, the patient may experience local swelling and pain and other uncomfortable symptoms. 3. Conjunctivitis: physical and chemical stimulation, allergies and infections can cause conjunctival inflammation, under the stimulation of inflammation, the patient’s eyes may appear red, swollen, photophobia, tearing performance, but also eye pain symptoms. It is recommended that patients with red, swollen and painful eyelids should consult a doctor promptly to assess their condition and follow the doctor’s instructions for treatment.