Hair Selenium Content (Mass Concentration)

What Is Hair Selenium Testing Used For?

Hair selenium testing is primarily used to evaluate selenium levels in your body. Unlike blood tests, which only reflect recent selenium intake, hair selenium can provide a more comprehensive picture of your long-term selenium exposure and status. This can be useful for identifying deficiencies or excesses that may not be apparent in blood tests alone.

How Is This Test Performed?

A small sample of your hair is collected, usually from the scalp or roots. The hair is then analyzed in a laboratory to determine the concentration of selenium. This process does not require fasting or special preparation.

Why Might Your Doctor Order This Test?

Your doctor may recommend hair selenium testing if you have symptoms or risk factors associated with selenium deficiency, such as fatigue, weakened immunity, or neurological issues. It may also be used in cases where blood selenium levels are unclear or if you have conditions like selenium toxicity.

What Do the Results Mean?

Results are typically presented as the mass concentration of selenium in the hair sample. While reference ranges can vary by lab, lower levels may suggest a deficiency, while very high levels could indicate toxicity. Your doctor will interpret the results in the context of your overall health and medical history.