What Is a Bump or Lump on the Eyelid?
A bump or lump on the eyelid is a localized swelling that can arise from blocked oil glands, infection, or benign growths. Common types include styes (hordeola) and chalazia, which differ by whether infection or inflammation predominates. Most lesions are harmless but can be tender or cosmetically bothersome. A careful exam distinguishes among causes and rules out rare tumors.
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