How to recognize late-onset hypogonadism in men with sexual dysfunction

Area of Science:

• Andrology
• Endocrinology
• Men's Health

Background:

• Late-onset hypogonadism (LOH) affects approximately 1 in 100 men.
• Diagnosis is challenging due to nonspecific symptoms mimicking aging.
• Sexual dysfunction is a primary driver for seeking medical consultation.

Purpose of the Study:

• To investigate associations between low serum testosterone (T) levels and various clinical parameters in men with sexual dysfunction.
• To identify accurate diagnostic indicators for LOH.
• To evaluate the efficacy of structured diagnostic tools for LOH.

Main Methods:

• Analysis of 1734 male subjects presenting with sexual dysfunction.
• Assessment of serum testosterone levels against different thresholds.
• Evaluation of sexual parameters, medical history (delayed puberty, pituitary disease, cryptorchidism), physical exam, and metabolic parameters (waist circumference).
• Comparison of structured interviews (e.g., ANDROTEST) with self-reported questionnaires.

Main Results:

• Metabolic parameters, particularly waist circumference, showed the highest accuracy in detecting low testosterone.
• A combination of multiple symptoms and signs significantly increased clinical suspicion for low T.
• Structured interviews demonstrated greater accuracy than self-reported questionnaires in identifying low testosterone levels.

Conclusions:

• Diagnosing LOH requires a combination of symptoms, signs, and confirmed low testosterone levels.
• Waist circumference is a valuable indicator for identifying men with potential androgen deficiency.
• Structured diagnostic tools like ANDROTEST improve the accuracy of LOH detection compared to standard questionnaires.