Elderly and middle-aged people have bumps on their eyelids, which may be caused by fat grain, granuloma, allergic dermatitis and other diseases. 1. Fat grain: it is a small cyst located in the dermis, occurring in the facial parts, especially around the eyes is more common, can show the size of a grain of white or yellow pimples, not accompanied by itching and pain symptoms, the cause of its pathogenesis is still unclear, and most of the consideration may be with the skin damage, skin inflammation stimulation, etc. Caused by. 2. Granuloma: usually caused by middle-aged and old people who use their eyes unhygienically and often rub their eyes with dirty hands, which can lead to red, painful bumps on the eyelids, accompanied by tearing, eyelid congestion and other symptoms. 3. Allergic dermatitis: part of the middle-aged and elderly people due to low immunity, may be allergic to pollen, dust mites and other substances, when the eyes come into contact with these substances, it is likely to induce allergic dermatitis, in the inflammation of the stimulation, resulting in eyelid bumps, but also accompanied by obvious itching and pain symptoms. Middle-aged and elderly people eyelid long pimples, may also be caused by other reasons, if accompanied by obvious symptoms of discomfort, should go to the hospital in a timely manner, after diagnosis, to give targeted treatment.