Many people are troubled by the appearance of dark circles. You may probably become worried a bit. Dark circles under eyes can make you look older than you really are, and those who have them are often told by well-meaning meddlers, “You look tired.”
If we suffer from dark under-eye circles, others may assume from our appearance that we are recovering from a drinking binge the night before. It is not even unheard of for the parents of children with dark circles under their eyes to find themselves suspected of negligence. (“Why does your child look like that? Isn’t he getting enough sleep?”)
Fun aside, while there is some truth to the perception that dark circles under eyes can be caused by a drinking binge and/or lack of sleep—fatigue can cause the skin to lose its luster, and alcohol dehydrates you—there is more to it than that.
Periorbital dark circles
have a great variety of different causes, and despite what most people seem to think, fatigue isn’t the only one. While alcohol and lack of sleep can both contribute to dark circles under eyes, there are also a number of illnesses that can have this effect, and some people are just genetically predisposed to look that way from childhood. The combination of a fair complexion and thin skin is often the culprit.
Some of the more common causes of dark circles under the eyes include:
Heredity. Dark circles under the eyes can appear in childhood, and are often an inherited trait. Some children will outgrow them, but others will not.
Allergies. Nasal congestion can dilate the blood vessels that drain from the area around your eyes, causing them to darken.
Sleep deprivation is the most common cause, and the easiest to prevent, but …
Oversleeping can also cause dark eye circles.
As we get older, our skin becomes thinner.
Iron deficiency can prevent the blood from carrying sufficient oxygen to eye tissues.
Minor trauma that causes the appearance of a black eye.
Lifestyle. Excessive smoking or drinking can contribute to under-eye circles. Also, people who drink too much coffee or who use cocaine or amphetamines may have difficulty getting enough sleep.
Fluid retention, as may occur with pregnancy or weight gain.
Skin pigmentation abnormalities. The skin around the eyes is thinner, which is why your blood vessels are more readily visible through it. For this reason, irregular distribution of the melanin that gives the skin its color can cause dark circles to appear beneath the eyes. This is frequently a problem for people of Asian or African descent.
Excessive exposure to the sun. Sun exposure encourages your body to produce more melanin.
Age. As we get older, we lose some of the fat and collagen surrounding our eyes. This loss, combined with the thinning of our skin, magnifies the appearance of dark eye circles.
Mononucleosis can cause the eyes to appear puffy and swollen. This is due partly to the fatigue that people feel when they are suffering from mononucleosis, and partly because this illness causes a yellowing of the eyes and the skin around them (this is called jaundice).
Periorbital cellulitis. Periorbital cellulitis is a bacterial infection of the eyelid or eyelids. If it is promptly treated with antibiotics, however, it is nothing to worry about.
Excess salt in the diet causes fluid retention throughout your body—including underneath your eyes.
I hope it answers your question. Thanks for A2A.