Eyelids rubbed suddenly swollen, may be related to acute conjunctivitis, allergic dermatitis, force stimulation and other reasons. 1. Acute conjunctivitis: If the patient’s eye tissue is infected by bacteria and other germs, causing acute inflammation of the conjunctiva, the patient may show redness of the eyes, tearing, foreign body sensation in the eyes and other discomforts, and the eyelid or conjunctiva may appear swollen when rubbing. 2. Allergic dermatitis: If allergic patients are exposed to dust and other allergenic substances, which can lead to abnormal immunity, patients may experience itching, swelling and other discomfort in the eyes, and once rubbed, it can lead to increased swelling of the eyelids. 3. Exertion stimulation: If the patient rubs the eyes too hard, resulting in capillary dilatation, plasma fluid into the tissue space, can cause the patient’s eyelid swelling. It is recommended that patients with significant eyelid swelling consult a hospital in a timely manner to clarify the cause of the disease and under the guidance of the doctor for treatment.