Sex Hormone Binding Globulin (SHBG) Test

Sex Hormone Binding Globulin (SHBG) Test

Category
Hormones
Sample
Blood sample taken from a vein in your arm
Reports () Terms & Conditions Report time varies with time of sample collection.
In 2 days
Fasting
No Fasting
Age
5+ Years

What Is This Test?

Measures sex hormone-binding globulin (SHBG), a protein that binds testosterone and oestrogen in the blood.

Why this test is performed?

Helps interpret testosterone results and evaluate PCOS, androgen excess, low libido, and liver or thyroid conditions that change SHBG.

Who should take this test?

Symptoms suggesting hormonal imbalance — weight change, fatigue, BP changes, growth problems — usually as advised by a doctor.

Test Preparation

No fasting needed.

Medical disclaimer · for information only, not medical advice

This article is for general information and education only. It is not medical advice, does not create a doctor–patient relationship, and is not a substitute for consultation with a qualified doctor who has assessed your individual situation. Never delay seeking medical advice because of something you have read here.

In a medical emergency, call 112, or 108 for an ambulance where that service operates, or go to your nearest emergency department. If you are in mental health distress, Tele-MANAS is free and available 24×7 on 14416.

Read our Editorial Policy and Medical Review Process.

Frequently asked questions

More free testosterone may be available. Low SHBG is common in PCOS, obesity and insulin resistance.

No fasting is needed. You can eat and drink normally unless your doctor has advised otherwise.

Blood sample taken from a vein in your arm.

Usually within 15–39 hours after the sample reaches the lab. You will receive the report online.

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