The lower eyelids appear significantly puffy due to skin laxity and forward protrusion of orbital fat, called bags under the eyes, which are commonly seen in people over 40 years old, so most patients still consider the skin to show signs of aging due to age. This condition generally progresses more slowly and develops simultaneously in both eyes. It is usually left untreated, but if you feel that it affects your beauty, you may consider surgical treatment. The significant puffiness found at the unilateral eye bags may be related to other factors, such as inflammation or allergy factors. If the puffiness is accompanied by significant redness, swelling and pain, it may be caused by inflammation, usually considered as mydriasis, also known as blepharitis, in which case anti-inflammatory treatment is required to prevent the spread of inflammation to form orbital cellulitis. If the swelling is accompanied by significant itchiness, it may also be caused by allergies, and the cause of the allergy should be identified and treated promptly. If the swelling of the upper and lower eyelids is obvious, it is necessary to check whether it is accompanied by facial edema or edema of the extremities, and consider whether it is caused by systemic factors. It is advisable to go to the hospital promptly and may require kidney function tests and heart function tests. If the upper eyelid swelling is significant. Consider excluding thyroid-related eye disease.