Why have I red circles under my eyes lately?

Red circles under the eyes can have several causes. Some of the possible causes include:

1) Allergies: Allergies can cause the release of histamine, a substance that can cause inflammation. This inflammation can lead to dilation of blood vessels under the eyes, resulting in red circles.

2) Chronic dryness: This is often a result of dehydration. Staying hydrated can help keep the eyes from drying out and reducing redness.

3) Dermatitis: Skin conditions like eczema, dermatitis, and rosacea can cause redness under the eyes. These conditions can inflame the skin and lead to dilated blood vessels.

4) Poor diet: Deficiency of certain vitamins, such as vitamin A, can cause the under-eye area to appear red.

5) Excessive alcohol: Alcohol dehydrates the body, which can contribute to red circles around the eyes.

6) Smoking: Smoking can damage blood vessels and increase inflammation, leading to redness under the eyes.

7) Tiredness and fatigue: Lack of adequate sleep or chronic fatigue can lead to reduced blood circulation and oxygen supply to the skin under the eyes, causing red circles.

8) Genetic predisposition: Some people may be more likely to develop red circles under the eyes due to genetics.

9) Medical conditions: Some underlying medical conditions, like high blood pressure, certain thyroid conditions, or vitamin deficiencies can also cause red circles under the eyes.

If the redness is persistent or accompanied by other symptoms, it is advisable to consult a healthcare professional for proper diagnosis and treatment.