Small particles on the inner eyelid may be caused by ocular calculi, conjunctivitis, and cornrows. 1. Ophthalmic calculi: caused by long-term chronic inflammation stimulating the mucous membrane of the eyelid, the eye will have an obvious foreign body sensation, will not move and disappear on its own, the particles are usually white, also known as is the conjunctival calculi. 2. Conjunctivitis: It is mostly caused by pathogenic bacterial infections, such as bacteria, viruses, mycoplasma, etc., or physical injuries, which lead to inflammation of the eyelids, with red or white pus spots, accompanied by yellow eye droppings. 3. Corns: mainly due to infection or inflammation of the sebaceous glands, resulting in damage to the sweat ducts to form retention cysts, creamy white or yellow, pinhead to rice grain size firm papules, usually round. The appearance of small particles on the inner eyelids, it is recommended to seek medical advice, follow the doctor’s instructions to check, and targeted treatment.