Under-eye bags are the mild swelling or puffiness that develop beneath the eyes, often giving a tired or aged appearance. They occur when the skin and muscles around the eyes weaken, allowing fat and fluid to accumulate in the lower eyelids. Common causes include aging, genetics, fluid retention, allergies, and lifestyle factors such as poor sleep or a high-sodium diet. In some cases, worsening puffiness or dark circles may indicate underlying health concerns, making under-eye bags treatments in Leesburg, FL, essential for both cosmetic and wellness reasons.