Puffiness and bags under the eyes develop as people age and the muscles and tissue structures supporting the eyelids begin to weaken, according to Mayo Clinic. Hormone levels, consumption of salty foods, lack of sleep, and allergies also contribute to puffiness under the eyes.
Heredity can contribute to puffiness under the eyes, especially if family members have under-eye bags and puffiness, explains Mayo Clinic. Hot and humid weather causes eyes to get puffy and bags to form, too.
Age is the primary cause of puffiness and bags under the eyes because skin starts to sag and fat pockets around the orbit of the eye move below the eyes, according to Mayo Clinic. The space below the eyes typically accumulates fluid, which can cause the under-eye area to appear swollen or puffy.
Puffiness and bags under the eye are more of a cosmetic concern, explains Mayo Clinic. It is uncommon that puffiness or under-eye bags indicates a sign of a medical condition or illness. Individuals with puffy eyes or bags under the eyes can minimize the appearance by applying cool compresses to the eye or applying concealer and cosmetic products. If lack of sleep is causing the puffiness, gaining more rest on a daily basis can help remedy the situation.