Most people have dark circles under their eyes due to lack of sleep, eye fatigue, smoking, etc. However, if the dark circles still persist after the removal of the above conditions, they should go to the ophthalmology department of a regular hospital as soon as possible to be further excluded from other diseases by the doctor.
There are two types of dark circles under the eyes, one is greenish dark circles, which is due to blood stagnation in the microvessels, and the other is teal dark circles, which is due to incomplete melanin production or metabolism.
The greenish-black circles under the eyes are mostly seen in people with irregular work and rest, and are more common in young people. The dark circles are mostly related to ageing, long-term sun exposure and other causes of pigmentation around the eyes, over time the formation of dark circles. There are a variety of reasons for dark circles,
For example:
1. genetic constitution and physiological structure
2. sleep deprivation
3. long illness and weakness or the beginning of a major illness
4. inflammation
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Expanded Information: Dark circles are due to staying up late, emotional fluctuations, eye fatigue, aging leads to the eye skin blood vessels blood flow rate is too slow to form stagnant flow; insufficient supply of oxygen to the tissues, the blood vessels of the metabolic wastes accumulated in excess, resulting in the eyes of hyperpigmentation. The older you get, the thinner the subcutaneous fat around your eyes becomes, so dark circles are more obvious. Reference: