What does darkening around the eyes indicate?

Darkening around the eyes may result from congenital developmental abnormalities, excessive fatigue, lack of sun protection, and other causes.

1. Congenital developmental abnormality

Under the influence of genetic factors, excessive pigmentation around the eye area during fetal development can lead to periorbital melanosis. This is a congenital developmental condition and an autosomal dominant genetic disorder, which typically does not require special treatment.

2. Excessive fatigue

Prolonged熬夜 (staying up late) using mobile phones or watching television, or working extensively in front of electronic screens, can cause excessive eye strain and slowed blood circulation, potentially leading to darkened eye areas. However, this usually gradually improves after adequate rest.

3. Lack of sun protection

If proper sun protection is neglected during prolonged outdoor exposure, excessive ultraviolet radiation may induce pigmentation. In such cases, appropriate sun protection measures should be taken.

In addition, when the kidneys are damaged—for example, in conditions such as chronic nephritis—reduced kidney metabolic function may also contribute to this symptom, requiring timely medical evaluation and treatment.