The patient has a small rice grain lump on the eyelid, which may be caused by anhidrosis, erysipelas, flat warts and so on. 1. Sweat duct tumor: Sweat duct tumor has a color similar to skin color, pink or slightly transparent small particles, it is a benign tumor caused by hyperplasia of sweat duct tissue in the dermis layer, often appearing around the eye socket, especially in the lower eyelid. 2. granuloma: commonly known as pinhole, is a purulent inflammation of the eyelid glands, the patient eyelids can form abscesses, the top of the abscess can appear “white spots”, so the appearance of the performance of the small white particles, looks like whiteheads pimples, the patient can also be accompanied by eyelid redness, swelling, pain and other uncomfortable symptoms. 3. Flat warts: Flat warts are coffee-colored or skin-colored, often caused by viral infections, and have a flat tip, hence their name. It is recommended that patients with small particles on the eyelids and other discomforts consult a doctor to evaluate their condition and follow the doctor’s instructions.