Dark Circles

Fatigue

Extreme fatigue or even staying awake a few hours past normal bedtime can cause dark circles to form under your eyes.

Allergies

The body releases histamines as a reaction to harmful bacteria or when you have an allergic reaction. The histamines cause the dilation of blood vessels and make them more visible under the skin and thus can trigger dark circles.

Overexposure to Sun

Melanin in the skin is responsible for giving skin its color. When skin gets overexposed to Sunlight, more melanin is produced. This leads to darkening of the skin around your eyes; causing dark circles.

Genetics

If it is in your genes, you might get dark circles at an early age.

Stress

Stress can aggregate dark circles.

Eye strain

Watching any screen like mobile, computer or TV, spectacles for long periods causes significant strain on your eyes. This strain results in enlargement of blood vessels around the eyes. This causes darkening of the skin surrounding the eyes or causes dark circles.

Age

With increasing age, skin becomes thinner and its elasticity is lost because the fat and collagen which maintains its elasticity are on a decline. The dark blood vessels beneath the skin become more visible causing the area below the eyes to appear darker.

Dehydration

Dark circles are also caused by dehydration. Because of insufficient water in the body, the skin looks dull. The skin near the eyes looks sunken, due to the close proximity to the underlying bone; leading to prominent dark circles.

Certain medical conditions

Conditions like anemia, the thyroid can cause dark circles.