What Is Gynaecomastia in Men? Causes & Treatment

Quick Summary

Gynaecomastia in men is a common condition where male breast tissue becomes enlarged because of hormonal imbalance between oestrogen and testosterone. It can happen at almost any age and is more common than most people think.

Some cases of gynaecomastia settle on their own. Others persist and can affect confidence and day to day comfort. But there are effective treatment options available in the UK, including surgery if needed.

This guide explains everything in a simple and clear way so you can understand what is happening and what your options are.

 

Understanding Gynaecomastia

What is gynaecomastia?

When we talk about gynaecomastia, we are referring to the growth of glandular breast tissue in men.

Inside the male chest, there is a small amount of breast tissue. Normally, it stays flat and unnoticeable. But when hormones become unbalanced, that tissue can grow and become more noticeable.

This is not just fat on the chest. It is gland tissue, which feels firmer and positioned directly under the nipple area.

 

Gynaecomastia vs chest fat

One of the biggest misconceptions about gynaecomastia is that it is simply caused by being overweight. Excess body fat can make the chest look bigger, but this is not the same thing.

Doctors often distinguish between:

Pseudogynaecomastia

• Due to excess fat
• Linked to weight gain
• May improve with diet and exercise

True gynaecomastia

• Due to enlarged glandular tissue
• Feels firm under the nipple
• Do not disappear through exercise alone

Many men have a combination of both fat and glandular tissue. This is the reason why some men struggle to achieve the chest shape that they want even after regular exercise and a healthy lifestyle.

 

Types of gynaecomastia

• Physiological gynaecomastia: this naturally occurs during certain stages of life.
• Puberty: hormonal fluctuations during adolescence can cause a temporary breast enlargement, and resolves within a couple of years.
• Ageing: testosterone levels decline as men get older. This increases the likelihood of gynaecomastia.
• Drug-induced gynaecomastia: certain medicines and substances may contribute to growth of the breast tissue.
• Pathological gynaecomastia: this is linked to an underlying medical condition that affects hormone balance.

 

 

What Causes Gynaecomastia in Men?

Knowing the causes is the first step in finding the right treatment.

 

Hormonal imbalances

This is the most common cause of gynaecomastia, when there is a change in the balance between testosterone and oestrogen.

When testosterone levels fall or oestrogen levels increase, breast tissue may begin to enlarge.

 

Medications and substances

There are several medication linked with gynaecomastia, including:

• Some antidepressants
• Certain heart medications
• Anti-androgen treatments
• Prostate medications

Substances that may increase the risk include:

• Anabolic steroids
• Excessive alcohol intake
• Cannabis use

These substances contribute to hormonal changes, but not everyone who uses these substances develop gynaecomastia.

 

Medical conditions

Some health conditions can also affect the production and regulation of hormones.

These include:

• Low testosterone levels
• Liver disease
• Kidney disease
• Thyroid disorder
• Rare hormone-producing tumours

That is why it is important for a professional assessment, especially if symptoms develop suddenly.

 

Lifestyle factors

Factors that may contribute include:

• Obesity
• Poor dietary habits
• Lack of physical activity

Fat tissue can increase the conversion of testosterone into oestrogen, which can make the symptoms worse.

 

Genetic factors

Some men appear to be more prone to gynaecomastia because of inherited traits from their family members that may affect hormone sensitivity and metabolism.

Related read: BodyTite Gynecomastia: Transform Your Chest & Confidence

 

Symptoms of Gynaecomastia

Physical symptoms

Common signs include:

• Enlargement of the chest area
• Firm tissue beneath the nipple
• Swelling around the breast tissue
• Tenderness or discomfort
• Increased in nipple sensitivity

The condition may affect one side or both sides of the chest.

 

The emotional impact

Emotional effects can be just as important as the physical symptoms.

Men often tell us the feel uncomfortable:

• Wearing fitted shirts
• Going shirtless on the beach
• Swimming
• Using gym changing rooms
• Participating in social activities

These feelings can affect confidence and self-esteem over time.

 

Gynaecomastia Risk Factors

You may have higher risk of developing gynaecomastia if you:

• Are going through puberty
• Are over the age of 50
• Are overweight
• Have low levels of testosterone
• Use anabolic steroids
• Take certain medications
• Have a family history of gynaecomastia

You can increase the likelihood of having gynaecomastia if one or more risk factors are present, but it does not necessarily mean you will develop it.

 

How Is Gynaecomastia Diagnosed?

If you are concerned about the changes in your chest area, the best place to start is to get a specialist consultation. Diagnosing gynaecomastia involves a combination of physical examination, medical history, and sometimes additional tests.

Diagnostic Method	What Happens?	Why It Is Important
Physical examination	A clinician checks the chest and assesses the size of the breast tissue.	It helps determine if the enlargement is caused by fat, glandular tissue, or combination of both.
Blood tests	A blood sample is used to check hormone levels and assess overall health.	It helps identify hormonal imbalances, or any medical conditions that may be causing your gynaecomastia.
Imaging scans	An ultrasound or other imaging test may be requested to confirm diagnosis.	It provides a closer look at the breast tissue.
Ruling out other condition	Your specialist will assess other unusual symptoms, like hard lumps, nipple discharge, or one-sided enlargement.	It helps rule out a more serious condition like male breast cancer, and ensure you receive proper treatment.

 

Natural Remedies for Gynaecomastia

Dietary changes

This may include:

• Lean protein sources
• Fruits and vegetables
• Whole grains
• Healthy fats

Reducing alcohol and highly processed foods may also benefit you.

 

Exercise and weight management

Regular exercise can:

• Reduce overall body fat
• Improve chest shape
• Support a healthy lifestyle

 

Do natural remedies really work?

Lifestyle improvements can help some men, especially those with excess chest fat. But, once glandular tissue has developed, natural remedies are often limited.

This is the reason why persistent gynaecomastia needs medical treatment.

 

Gynaecomastia Surgery (Male Chest Reduction)

Surgery offers a long-lasting solution.

Related read: Gynaecomastia Surgery London

 

When is surgery recommended?

Surgery may be suitable if:

• The symptoms have persisted more than 12 months
• Lifestyle changes have not helped
• You experience emotional distress
• The enlarged tissue do not improve naturally

 

Surgical options

Options may include:

• Liposuction: removes excess fat from the chest area and helps with contour
• Gland excision: this technique removes directly the firm glandular tissue
• Combination treatment: many patients choose combining these two treatments to achieve the best results

Related read: Liposuction London

 

Recovery process

Most men can expect:

• Mild swelling and bruising
• Use of compression garment for several weeks
• Return to desk-based work within days
• Gradual return to exercise after several weeks

Final results become more visible as swelling settles.

Related read: Tamoxifen for Gynaecomastia: Benefits, Risks & Results

 

Gynaecomastia Grades Explained

Doctors classify gynaecomastia into four grades.

 

Grade 1

Small enlargement with no excess skin.

 

Grade 2

Moderate enlargement without significant skin excess.

 

Grade 3

Noticeable enlargement with mild skin laxity.

 

Grade 4

Significant enlargement with excess skin and a more pronounced chest contour.

 

When Should You See a Specialist?

Visit your specialist if you notice:

• Rapid breast enlargement
• Persistent pain
• Nipple discharge
• A hard lump
• One sided-swelling

Although most cases are harmless, it is always best to seek professional advice if symptoms concern you.

 

FAQs

• Is gynaecomastia dangerous?

It is usually harmless, but it is important to diagnose any underlying medical conditions with the same symptoms as gynaecomastia.

• Can gynaecomastia naturally go away?

Yes. puberty-related gynaecomastia resolves on its own. But, persistent adult cases are less likely to disappear without treatment.

• What is the difference between fat and gynaecomastia?

Fat feels soft and may reduce with weight loss, but gynaecomastia has a firm glandular tissue that remains even after lifestyle change and exercise.

• How effective is gynaecomastia surgery?

This is the most effective treatment that can give you long-lasting improvement in your chest.