How Are Under-Eye Bags Formed?

Eye bags refer to sagging, swollen skin beneath the lower eyelids, appearing as pouch-like protrusions. They often convey an impression of aging, fatigue, and low energy. In daily life, many people develop eye bags due to frequent late-night activities or irregular lifestyle habits. For women especially, eye bags can significantly diminish facial aesthetics. So, how do eye bags form? Below, we address this question.

How Do Eye Bags Form?

1. Impaired Circulation

Poor blood circulation around the eyes is a common cause of eye bags. When microcirculation in the periorbital area is sluggish, fluid retention and tissue swelling may occur, leading to eye bag formation. To alleviate such eye bags, it’s important to allow the eyes adequate rest, massage acupressure points around the eyes, or apply cold compresses. Additionally, genetic factors may contribute—eye bags can be hereditary, meaning some individuals are born with a predisposition to them.

2. Excess Fat

Excess fat accumulation beneath the eyes is another primary cause of eye bags. Increased fat volume reduces skin elasticity and causes fat pads to descend and bulge forward. This type of eye bag may be improved through procedures such as fat removal (blepharoplasty) or localized lipolysis. Moreover, consuming excessive fluids before bedtime can also lead to temporary eye bags. When too much water is ingested close to bedtime, the kidneys may temporarily fail to excrete the surplus fluid efficiently, resulting in periorbital edema—and subsequently, eye bags.

3. Sleep Deprivation

Insufficient sleep is another major contributor to eye bag formation. The periorbital region contains abundant capillaries; when sleep-deprived, the eyelids remain under constant tension, causing prolonged vasoconstriction and increased blood flow. This leads to venous stasis and edema in the subcutaneous tissues—ultimately manifesting as eye bags. However, if eye bags persist chronically, they may signal underlying systemic conditions—for instance, chronic liver disease, particularly cases involving abnormal liver function or hepatomegaly. In such instances, prompt medical evaluation and treatment are essential.

The above outlines the primary mechanisms behind eye bag formation. We hope this information proves helpful to you.