What are the limitations of the male hypogonadism diagnostic criteria?

While the male hypogonadism diagnostic criteria is highly validated, it should not replace clinical judgment. OpiCalc provides the latest evidence-based limitations for the male hypogonadism diagnostic criteria to ensure safe bedside use and optimal diagnostic accuracy.

How does the male hypogonadism diagnostic criteria compare to other Endocrinology scores?

The male hypogonadism diagnostic criteria is a gold-standard diagnostic tool. OpiCalc provides side-by-side clinical guidance to help clinicians choose the most specific evidence-based tool for their patient's presentation.

Is the male hypogonadism diagnostic criteria free to use?

Yes. OpiCalc provides the male hypogonadism diagnostic criteria completely ad-free and optimized for mobile bedside use, ensuring you can calculate medical risk swiftly and without distraction.

Male hypogonadism diagnostic criteria | Endocrinology Calculator

CLINICAL REFERENCE

CLINICAL INSIGHT

When to Use

When to Screen

Clinical features of androgen deficiency (reduced libido, erectile dysfunction, loss of body hair, depressed mood).
Screening in Type 2 Diabetes, Severe Obesity, or long-term Opioid/Glucocorticoid use.
Evaluating secondary osteoporosis in men.
Pituitary mass or history of sellar surgery/radiation.

CLINICAL INSIGHT

How it Works

1. Laboratory Thresholds

The Endocrine Society defines hypogonadism as a persistent Total Testosterone < 300 ng/dL (10.4 nmol/L) measured on at least two separate mornings (before 10 AM) in a fasting state.

2. Differentiation

Feature	Primary (Testicular)	Secondary (Pituitary/Hypothalamic)
Testosterone	Low	Low
LH / FSH	High	Low or "Inappropriately Normal"
Common Causes	Klinefelter syndrome, Trauma, Mumps	Prolactinoma, Weight loss, Opioids, Iron overload

CLINICAL INSIGHT

Practical Pearls

Free Testosterone

In men with values near the threshold (200–300 ng/dL) or conditions affecting SHBG (obesity, liver disease), Free Testosterone calculated by equilibrium dialysis is a more accurate indicator of androgen status.

Secondary Screen

If secondary hypogonadism is confirmed, check Prolactin, Iron studies (Ferritin/TSat), and consider Pituitary MRI if T < 150 ng/dL or if visual symptoms are present.

CLINICAL INSIGHT

Evidence Base

Primary Source

Testosterone Therapy in Men With Hypogonadism: An Endocrine Society Clinical Practice Guideline.

Bhasin S, Brito JP, et al.J Clin Endocrinol Metab2018

When to Use

When to Screen

How it Works

1. Laboratory Thresholds

2. Differentiation

Practical Pearls

Free Testosterone

Secondary Screen

Evidence Base

Primary Source

Male Hypogonadism Diagnostic Criteria

When to Use

When to Screen

How it Works

1. Laboratory Thresholds

2. Differentiation

Practical Pearls

Free Testosterone

Secondary Screen

Evidence Base

Primary Source

Male Hypogonadism Diagnostic Criteria

Clinical Evidence and Methodology

When to Use

When to Screen

How it Works

1. Laboratory Thresholds

2. Differentiation

Practical Pearls

Free Testosterone

Secondary Screen

Evidence Base

Primary Source

Male Hypogonadism Diagnostic Criteria

Clinical Evidence and Methodology

When to Use

When to Screen

How it Works

1. Laboratory Thresholds

2. Differentiation

Practical Pearls

Free Testosterone

Secondary Screen

Evidence Base

Primary Source

Male Hypogonadism Diagnostic Criteria