What does it mean if there's a bump inside the left eyelid?

A lump inside the left eyelid may be caused by conditions such as hordeolum, dacryoadenitis, or chalazion.

1. Hordeolum: This may result from prolonged use of contact lenses, incomplete makeup removal, or frequently rubbing the eyes with dirty hands. The meibomian glands or sebaceous glands along the eyelid margin become infected with pathogenic bacteria such as Staphylococcus aureus, leading to the development of a hordeolum.

2. Dacryoadenitis: This may occur when the lacrimal gland is infected by pathogenic microorganisms such as Neisseria gonorrhoeae or Staphylococcus aureus, or when conditions like otitis media or tonsillitis lead to metastasis from distant suppurative foci. Inflammation causes swelling and congestion in the lacrimal gland and conjunctiva.

3. Chalazion: This may develop due to a long-term diet high in meat or underlying chronic conditions such as chronic conjunctivitis. Impaired meibomian gland secretion and chronic irritation of surrounding tissues can lead to chalazion formation.

In addition, eyelid lumps could also be caused by meibomian gland carcinoma; therefore, timely differential diagnosis is recommended.