When the skin and muscles lose elasticity due to age, the skin around the eyes sag. The main reason for the black under the eyes is the lack of proper blood supply to this part. The following are the causes of black spots under the eyes: - 1. These black spots under the eyes may be due to hereditary reasons. It is seen in many families that this has been happening for generations. Especially in the case of those whose skin color is pale and whose eyes are sitting in the corners. 2. When sleep is disturbed or sleep is disturbed, the face becomes pale or dirty. This clears the blood vessels in the skin which helps to darken or darken the skin. 3. Sunlight removes age spots around the eyes and thinns the skin which can cause black spots around the eyes. Also, due to hyperpigmentation or excess melanin, the skin may turn black. 4. It can also occur if the blood vessels under the skin under the eyes dilate and congestion occurs. Excess salt is a big cause of eating and smoking. Some diseases such as heart , thyroid , kidney , liver , disease or due to medication can often cause problems due to dilation of blood vessels. 5. Excessive work stress , mental anxiety , Exhaustion , fatigue, etc. can cause black spots. 6. Ink often falls under the eyes due to allergies. If the eyes are itchy due to allergies like dust , flower pollen , pet fur, etc., rubbing the eyes can cause such black spots under the eyes. This problem can also be caused by allergic fever and food allergies. 7. Iron deficiency anemia occurs. When the body is deficient in iron, the tissues do not get enough oxygen. As a result, the skin under the eyes turns bluish black. 8. If there is not enough water in the body, that is, lack of water causes black spots under the eyes. 9. Excess weight loss can also cause this problem. 10. Lack of balanced diet and excessive dieting is also a factor