Small particles growing inside the upper eyelid may be eye stones, chalazion, granuloma and so on. 1. Ophthalmic calculi: When ophthalmic calculi are large, they may protrude from the surface of the conjunctiva to form small particles, which may cause symptoms such as foreign body sensation, tingling and photophobia in the eye. 2. Chalazion: a chronic inflammatory swelling, which consists of glandular secretions retained in the eyelid and has a pressure effect on the eye. 3. Granuloma: i.e., blepharitis, manifested by the formation of a small lump on the surface of the eyelid or on the inside of the eyelid, resulting in congestion and swelling of the eyelid. It is recommended to go to the regular hospital in time to see the cause of the small particles inside the upper eyelid, to clarify the cause of the disease, and to carry out standardized treatment under the guidance of the doctor, so as to avoid the delay in the condition of the body brought about by the adverse effects.