Presence of Iron in Segmented Heterochromia of the Scalp Hair Without Iron-Deficiency Anemia

The study investigated the presence of iron in segmented heterochromia of the scalp hair in individuals without iron-deficiency anemia. The researchers from Dankook University Hospital in Korea found that iron was present in the hair segments exhibiting color variation, despite the absence of systemic iron deficiency. This suggested that localized iron deposition could occur independently of overall iron levels in the body, providing insights into the mechanisms of hair pigmentation and potential implications for understanding hair color changes.