What is an SHBG Test?
The SHBG test measures the blood level of SHBG, or Sex Hormone Binding Globulin.
Why is an SHBG Test important?
SHBG is a protein that binds testosterone and estradiol and transports them in the blood. As a result, the SHBG level affects the amount of these hormones that are available in the body.
What is an abnormal SHBG Test important?
Abnormal levels of SHBG can be seen in patients with excessive hair growth and undifferentiated sexual characteristics. Additionally, SHBG can be used with the Total Testosterone level to calculate the Free Androgen Index (Testosterone / SHBG). Values below 30 suggest a testosterone deficiency.