Gynecomastia is a condition in which a man’s chest develops a shape resembling that of a woman’s breast. It is typically caused by the development of mammary gland tissue beneath the areola.

There are two types of gynecomastia:

  • True Gynecomastia: Enlargement due to developed glandular tissue.

  • Pseudogynecomastia: Enlargement caused primarily by fat accumulation.

This guide will help you identify true gynecomastia through simple self-examination.

男性乳房发育症的字面意思是,男人的乳房与女人的乳房形状相同。

男性胸部外观相对平坦,有皮肤、脂肪和肌肉。

Step 1: Understand the Normal Male Chest Structure

A typical male chest consists of:

  • Skin

  • Subcutaneous fat

  • Muscle tissue (mainly the pectoralis major)

  • Small traces of mammary gland (normally <1 inch, ~5 grams)

In most men, glandular tissue is minimal and not easily palpable with fingers.

另一方面,由于该区域发育的腺体组织,女性的乳房外观丰满。

您可以检查乳晕下方是否有紧密的乳腺组织。

Of course, normal men also have traces of mammary glands.

However, since they are usually less than 1 inch in size and weigh around 5~10 grams,

they are difficult to hold with your fingers.

Step 2: Check Under the Areola

Using your fingers, gently press around and under your nipple (areola) area.

  • If you feel a firm, rubbery disc or lump beneath the areola, this may indicate developed glandular tissue.

  • If this tissue is easily graspable and surrounded by softer fat, true gynecomastia is likely.

但是,如果乳腺足够大,可以触及,

并且周围堆积了较软的脂肪,

可强烈怀疑真正的男性乳房发育。

超声波或乳房X光检查可用于准确的诊断,

但是经验丰富的男性乳房发育专家可以通过轻轻触摸它来轻松诊断男性乳房发育症。

而且,您需要从专家那里获得有关如何治疗它的详细咨询。

Step 3: Confirm with a Specialist

Although self-diagnosis is a helpful first step, an accurate diagnosis should be made by a medical professional using:

  • Physical examination

  • Ultrasound or mammography (if needed)

At Evita Clinic, our gynecomastia specialists can usually confirm the diagnosis with a brief touch and visual assessment.

Next Step: Consultation & Treatment Plan

If you suspect you have gynecomastia, schedule a consultation.
We’ll explain your condition in detail and recommend personalized treatment options — surgical or non-surgical.

Most true gynecomastia cases require surgical removal of the gland for a permanent solution.

You can connect directly with our English coordinator for assistance.

Please note that we may respond during business hours in South Korea.