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Gynecomastia.

¹University of Calgary, Alberta.

American Family Physician

|April 1, 1989

Summary

This summary is machine-generated.

Gynecomastia, or male breast enlargement, has various causes including hormonal imbalances and medications. Most cases are benign and often resolve with observation and reassurance.

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Area of Science:

Endocrinology
Men's Health

Background:

Gynecomastia is characterized by benign breast enlargement in males.
Etiologies range from physiologic and familial to pathologic and drug-induced.
It is typically unilateral and asymptomatic.

Purpose of the Study:

To review the causes, mechanisms, and management of gynecomastia.
To clarify the role of hormonal imbalances in gynecomastia.
To emphasize conservative management for most benign cases.

Main Methods:

Literature review of gynecomastia causes and pathophysiology.
Analysis of hormonal mechanisms including estrogen and testosterone levels.
Evaluation of treatment strategies for identified and idiopathic cases.

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Main Results:

Common causes include hormonal fluctuations, medications, and unknown factors.
Key mechanisms involve altered estrogen/androgen ratios or increased estrogenic effects.
Hyperprolactinemia is not a causative factor.

Conclusions:

Treatment should target the underlying cause when identifiable.
Most cases of gynecomastia are benign and self-limiting.
Management often involves reassurance and observation, avoiding unnecessary interventions.