Under-eye swelling affects the lower lids and surrounding tissues. It may be temporary or chronic.
Causes
Fluid retention from sleep position, diet, or systemic illness commonly collects in the loose tissues under the eyes. Allergy, sinus disease, and inflammatory lid conditions also produce under‑eye oedema, while ageing and fat prolapse create more permanent fullness.
- Morning-predominant under‑eye swelling often reflects overnight fluid shifts
- Red, tender swelling may indicate infection or inflammatory disease
- Thyroid eye disease can cause firm swelling and prominence in this region
- Renal or cardiac problems may show periorbital oedema alongside leg swelling
Assessment and Treatment
A history and examination help distinguish cosmetic from medical causes. Management may involve lifestyle changes, allergy control, systemic evaluation, or oculoplastic procedures.
- Seek medical review when swelling is sudden, painful, or associated with systemic symptoms
- Cold compresses and head elevation reduce mild oedema
- Addressing sinus or allergy problems lessens recurrent under‑eye swelling
- Specialist referral is appropriate when surgery is considered for long‑standing bags
