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Understanding Gynecomastia Properly! From Causes and Types to Surgery Methods and Self-Assessment

서진성형외과의원 - SEOJIN Plastic Surgery Korea · ▣ 예쁨을 위한 선택, 서진성형외과의원 ▣ · December 12, 2025

Understanding Gynecomastia Properly! From Causes and Types to Surgery Methods and Self-Assessment 📘 What Is Gynecomastia? Gynecomastia refers to the condition in which a man’s che...

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This page is an English translation of a Korean Naver Blog archive entry. For exact wording and source context, verify against the Korean archive original and the original Naver post.

Clinic: 서진성형외과의원 - SEOJIN Plastic Surgery Korea

Original post date: December 12, 2025

Translated at: April 20, 2026 at 1:48 PM

Medical note: This translation does not guarantee medical accuracy or suitability for treatment decisions.

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📘 What Is Gynecomastia?

Gynecomastia refers to the condition in which a man’s chest develops in a way that resembles a woman’s.

This is a medical condition that is distinct from simple fat accumulation due to weight gain. This symptom can easily cause external stress and psychological shrinkage, so it requires a detailed understanding of the cause and an individualized approach.

In today’s post, we’ll cover gynecomastia from its definition to its causes, major types, criteria for distinguishing it, and ways to improve it!

  • Gynecomastia refers to the development of glandular tissue in men or the enlargement of the chest in a way that resembles a woman’s chest.

  • Because it is different from simple fat accumulation, it is often difficult to improve with diet or exercise alone.

  • If the symptoms persist, they can not only reduce confidence but also interfere with daily life, such as causing difficulties in social relationships in severe cases.

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🧬 What Causes Gynecomastia?

Hormonal imbalance

It occurs when female hormones are excessively secreted during puberty or old age.

Weight gain

This is when an increase in fat cells promotes estrogen secretion.

Effects of medication use

It may also appear as a side effect of taking medications such as steroids or certain hair-loss treatments.

Endocrine system problems

This is when a dysfunction in endocrine organs causes problems with hormone regulation.

🩺 Types of Gynecomastia and Surgery Methods

🌟 Classification of Gynecomastia The distinction in gynecomastia is based on whether the main cause of the symptoms is the development of glandular tissue or fat accumulation.

True gynecomastia

This type involves the development of glandular tissue itself under the influence of female hormones and other factors. It may present with protruding nipples or noticeably enlarged areolas and chest.

Pseudogynecomastia (fat type)

This is when the glandular tissue has not developed, but excess fat has accumulated around the chest, making it appear enlarged.

It is important to create a treatment plan suitable for the individual through a detailed distinction of gynecomastia.

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🔪 Improvement Methods Through Surgery Depending on the type of gynecomastia, one method or a combination of methods may be applied.

Removal of glandular tissue

The developed glandular tissue is removed through a small incision. This is performed by selecting an area where scarring can be minimized as much as possible.

Liposuction

When the chest appears enlarged due to excess fat, fat is removed to refine the shape and improve firmness. It is used to effectively improve the overall shape regardless of the degree of glandular tissue development.

Skin elasticity management

If necessary, auxiliary methods to improve sagging or elasticity of the skin around the chest may be applied.

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🔍 Self-Assessment & Step-by-Step Diagnostic Classification

✨ Items to Check for Yourself If you have the following symptoms, you can check for yourself to distinguish whether it is simple fat or gynecomastia.

  • If the chest is large or rounded like a woman’s chest

  • If the area around the nipples is especially prominent or spread out

  • If the chest size does not decrease despite consistent exercise or weight loss

  • If the area below the nipple feels hard or a lump-like mass can be felt

  • If the degree or shape of development differs between the left and right chest

If you have these symptoms, a further diagnostic step is needed to distinguish gynecomastia.

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📊 Classification by Diagnostic Stage To distinguish gynecomastia, a detailed ultrasound and other tests are performed to assess the degree of progression.

Grade 1

Grade 2-a

Grade 2-b

Grade 3

If you are diagnosed with true gynecomastia and fall into a specific grade, there may be eligibility for coverage under national health insurance and private expense insurance. However, private expense insurance varies depending on the policy you are enrolled in, so you should consult your insurer to confirm whether it can be applied.

For a more detailed distinction of gynecomastia and to find personalized improvement options, it is wise to receive professional medical care.

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