What is the reason for a 2-month-old baby's yellow hair?

Patient's question:

Onset time: Laboratory test results: Previous treatment history and effectiveness: What is causing the yellow hair of an 18-month-old child? What kind of assistance is desired: Want to know what is lacking

Doctor's answer:

There are multiple reasons for yellow hair, including different races, intergenerational inheritance, and the content of trace elements such as iron, lead, zinc, cobalt, copper, platinum, and nickel in the hair, as well as the amount of melanin in hair cells and certain diseases (e.g., phenylketonuria, kidney disease). Therefore, hair turning yellow is related to nutrition and illness.
Advice: If the disease has been ruled out, excessive consumption of sugar, fat, and acidic substances in the diet can cause hair to turn yellow, while a lack of certain trace elements (such as iron, copper, and zinc) can also lead to this issue. A deficiency in copper reduces the function of tyrosinase, interfering with the metabolism of melanin. A lack of iron and zinc disrupts the growth and development of hair cells, causing the hair to turn yellow.