Bags under the eyes, that is, the lower eyelids have dense small particles, can be considered with cornu rashes or sweat duct tumors, etc. Related. 1. Cornucopia: it occurs around the eyelids, formed by the epithelium of the lower part of the funnel of cui-ui hair or undeveloped sebaceous glands, it is a yellowish-white solid papule with smooth surface and rounded top, not fused, and it can be squeezed out of the bulbous particles inside, generally without conscious symptoms. 2. Sweat duct tumor: adenoma belonging to the conduit differentiation of the end of the small sweat gland, often symmetrically distributed around the eyelids, lesions presenting yellowish, skin color or tawny flat or hemispherical papules, denser but not fusion, generally no self-conscious symptoms. Dense small particles appearing on the eye bags can be treated without symptoms, but if it affects the aesthetic appearance or there are changes, it is necessary to consult a doctor in a timely manner, and follow the doctor’s instructions for treatment.