What is Gynecomastia? Types, Grades and Causes

Gynecomastia is a medical condition that causes abnormal enlargement of glandular breast tissue in men due to a hormonal imbalance between oestrogen and testosterone. It is not caused by chest fat alone. Gynecomastia involves actual glandular tissue growth beneath the nipple and areola, which cannot be reduced through exercise or diet.

Gynecomastia affects approximately 35% of men at some point in their lives. The condition is most common in three groups: newborn males exposed to maternal oestrogen, adolescent boys during puberty, and men over the age of 50. At Dr DC Plastic Surgery in Pune, 45% of patients presenting with gynecomastia are in their 20s and 35% are in their 30s.

The condition is classified into four grades — Grade I through Grade IV — based on the volume of glandular tissue and degree of skin excess. Grade II, characterised by moderate enlargement without skin excess, is the most common presentation and accounts for 50% of clinical cases.

This article covers the types of gynecomastia, the four-grade classification system, what causes the condition, and when medical or surgical treatment is appropriate.

At a glance — Gynecomastia

1. Gynecomastia is enlargement of glandular breast tissue in men, not chest fat
2. It affects approximately 35% of men at some point in their lifetime
3. Four grades exist: Grade I (mild) through Grade IV (severe with skin excess)
4. Grade II is the most common presentation, accounting for 50% of clinical cases
5. The root cause is a hormonal imbalance: oestrogen activity exceeds testosterone
6. Pubertal gynecomastia in teenagers resolves without treatment in most cases within 6–24 months
7. Surgery is the only reliable treatment for persistent gynecomastia with fibrous glandular tissue

What Does Gynecomastia Actually Mean?

Types of Gynecomastia

There are four distinct types based on tissue composition and age of onset.

True Gynecomastia

True gynecomastia involves actual proliferation of glandular breast tissue beneath the nipple-areola complex. A physical examination reveals a firm, disc-like mass. Exercise and diet will not reduce glandular tissue. Surgery is the only reliable way to remove it.

Pseudogynecomastia

Pseudogynecomastia is chest fat, not glandular tissue. The chest appears enlarged but there is no firm mass beneath the nipple on examination. This is more common in overweight or obese men.

Weight loss may reduce pseudogynecomastia, though surgical fat removal may still be needed for significant deposits. See the full comparison: gynecomastia vs chest fat — what is the difference?

Pubertal Gynecomastia

Pubertal gynecomastia develops during adolescence due to the normal hormonal shifts of puberty. It affects an estimated 50–60% of adolescent males to some degree, according to research published by PMC NIH. In most cases, it resolves within 6–24 months without treatment.

When it persists beyond two years, a surgical evaluation is recommended. Read more about teenage gynecomastia treatment options.

Physiologic vs Non-Physiologic Gynecomastia

Physiologic gynecomastia occurs at predictable life stages: newborn, puberty, and older adulthood. It is driven by normal hormonal changes at each stage. Non-physiologic gynecomastia is caused by medications, anabolic steroids, or underlying health conditions.

The distinction matters clinically. Non-physiologic gynecomastia often requires treating the root cause before surgery is considered.

Grades of Gynecomastia — The Simon and Rohrich Classification

Surgeons use the Simon and Rohrich grading system to classify gynecomastia by severity. The grade determines the surgical approach, procedure duration, and expected recovery.

To understand your treatment options, the first step is determining which grade you have. Gynecomastia is graded I through IV based on the volume of glandular tissue and the degree of skin excess. At Dr DC Plastic Surgery in Pune, grade classification guides every element of surgical planning — from technique selection to procedure length. The table below summarises all four grades.

Source: Clinical case data, Dr DC Plastic Surgery, Pune (500+ gynecomastia surgeries performed).

Grade I is the mildest form. Glandular tissue is localised under the nipple with intact skin elasticity and no visible excess skin. Liposuction combined with direct glandular excision through a small incision typically corrects it. Grade I accounts for approximately 10% of cases at Dr DC Plastic Surgery.

Grade II is the most common grade seen clinically. Enlargement extends beyond the nipple and areola, but the skin remains elastic with no excess. Grade II accounts for approximately 50% of all cases treated at Dr DC Plastic Surgery in Pune. It is addressed using power-assisted and ultrasound-assisted lipolysis systems combined with glandular excision.

Grade III involves significant glandular enlargement with moderate excess skin. It accounts for approximately 30% of cases. Surgery includes liposuction, glandular excision, and skin tightening techniques supported by post-operative compression and specialised garments.

Grade IV is the most severe presentation. The chest has pronounced glandular tissue, considerable skin excess, and visible sagging. It represents approximately 10% of cases. Comprehensive surgical correction is required to address the gland and contour. Where significant skin excess persists after the chest has settled, a staged skin-reduction procedure is performed 6 months to 1 year later if needed.

What Causes Gynecomastia?

Gynecomastia develops when oestrogen activity increases relative to testosterone in the male body. According to StatPearls published on NCBI, this imbalance triggers glandular breast tissue proliferation. The cause may be physiologic (normal), pharmacologic (medication-driven), or pathologic (disease-related).

Hormonal Imbalance

Testosterone normally suppresses breast tissue development in males. When testosterone levels decline or oestrogen activity rises, glandular tissue can begin to grow. This is why gynecomastia occurs naturally at three stages: in newborns exposed to maternal oestrogen, in adolescent boys during puberty, and in men over 50 experiencing age-related testosterone decline.

Medications and Anabolic Steroids

Several medications are documented causes of gynecomastia. These include anabolic steroids, anti-androgens, certain antihypertensives, statins, antifungal medications, and antiretroviral drugs used in HIV treatment.

Anabolic steroid use is a particularly direct trigger. The body converts excess synthetic testosterone into oestrogen, which drives glandular tissue growth. This is why gynecomastia is common in men who use steroids for bodybuilding.

Underlying Medical Conditions

Medical conditions that alter hormone levels can cause gynecomastia. These include hypogonadism, hyperthyroidism, liver cirrhosis, chronic kidney disease, and adrenal conditions. Obesity is a contributing factor because adipose tissue produces oestrogen.

Rarely, hormone-secreting tumours of the testes or adrenal glands are the cause, according to the American Academy of Family Physicians. A clinical evaluation rules out these underlying causes before treatment begins.

Age-Related Causes

In men over 50, testosterone production declines gradually while oestrogen activity remains relatively stable. This slow hormonal shift can produce bilateral gynecomastia. It is generally benign but warrants evaluation to confirm no underlying condition is responsible.

How to Check at Home for Gynecomastia?

Two simple checks can give a useful indication of whether glandular tissue is present before booking a clinical consultation. They do not replace a physical examination by a surgeon, but they help clarify whether what is present is chest fat or actual glandular breast tissue.

The Pinch Test (with Slip Sign)

Place the index finger and thumb of one hand just above and below the nipple-areola complex and pinch the tissue gently. With the other hand, pinch a comparable area of abdominal fat. Roll both pinches slightly between the fingers.

If a firm, rubbery, distinct mass slips out from under the fingers around the nipple, that is the glandular disc — the finding is consistent with true gynecomastia. If both pinches feel the same in consistency — soft and uniform — the chest enlargement is most likely pseudogynecomastia (chest fat), which responds to weight loss and exercise.

The pinch test is the same technique used at clinical consultation. Self-assessment is approximate; a plastic surgeon who assesses several gynecomastia cases each week can confirm the finding immediately on examination.

Nipple and Areola Size

A normal nipple-areola complex is approximately 2 to 2.5 cm in diameter in adult men. When underlying glandular tissue is present, the areola often stretches, dilating to 3 to 3.5 cm or more. A visibly dilated areola is itself a sign that glandular tissue may be developing beneath the nipple.

Ultrasound for Confirmation

For definitive confirmation without a surgical assessment, an ultrasound scan of the chest provides a clear picture of how much glandular tissue and how much fat is present. A radiologist performs the scan on prescription from a plastic surgeon, and the report distinguishes glandular tissue from fat unambiguously.

Where home checks suggest glandular tissue, or where the result is uncertain, an in-person assessment with Dr. Dhruv Chavan provides the definitive answer. If the gland is continuing to enlarge — rather than having stabilised at a fixed size after adolescence — a hormonal evaluation by an endocrinologist is also indicated, since an ongoing hormonal imbalance can cause the gland to re-grow after surgical removal.

How to Know Which Grade You Have?

Grade classification requires a physical examination by a trained surgeon. Tissue firmness, extent of enlargement, and degree of skin excess are all assessed in person. You cannot determine your grade from photographs alone.

Some general indicators before your consultation:

1. Grade I: A firm disc felt under the nipple. Little or no visible enlargement in clothing.
2. Grade II: Visible chest fullness. No sagging. Noticeable in fitted clothing.
3. Grade III: Noticeable enlargement with some skin laxity. Visible through most clothing.
4. Grade IV: Significant enlargement with visible sagging. Resembles a female breast shape.

Use the self-assessment guide for gynecomastia as a starting point. To confirm your grade, an in-person consultation with Dr. Dhruv Chavan at Dr DC Plastic Surgery provides a definitive clinical assessment. Review the full candidate criteria for gynecomastia surgery before booking.

When Does Gynecomastia Need Surgery?

Not all gynecomastia requires surgical intervention. Pubertal gynecomastia often resolves without treatment. Gynecomastia caused by a medication may reduce once the medication is stopped. Treating an underlying hormonal condition can also reduce tissue volume.

Surgery is appropriate when:

1. Gynecomastia has been present for more than 12 months without reduction
2. The glandular tissue has become fibrous and will not respond to hormonal correction
3. Grade III or IV with significant skin excess is present
4. Psychological distress is substantially affecting quality of life
5. Non-surgical approaches have been explored without improvement

Dr. Dhruv Chavan, founder and lead surgeon at Dr DC Plastic Surgery in Pune, has performed over 500 gynecomastia surgeries across all four grades. Dr. Chavan routinely uses a small intra-areolar incision technique, which some patients informally call the “1 cm cut technique.” Incision length and placement may vary based on anatomy and clinical considerations. All procedures use US-FDA cleared and CE-certified power-assisted and ultrasound-assisted liposuction systems for precise chest contouring.

For a complete breakdown of the procedure, visit the step-by-step gynecomastia surgery guide or the gynecomastia surgery in Pune overview. For surgery costs broken down by grade, see the gynecomastia surgery cost page.

As Verified By

The clinical information in this article is supported by the following peer-reviewed and authoritative sources:

1. Braunstein GD. Gynecomastia. StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing. Updated 2023. NCBI Bookshelf
2. Johnson RE, Murad MH. Gynecomastia: Pathophysiology, Evaluation, and Management. Mayo Clin Proc. Referenced via PMC NIH
3. Narayanan V et al. A New Clinical Classification for Gynecomastia Management. Aesthetic Plast Surg. 2023. PMC NIH
4. Dickson G. Gynecomastia. Am Fam Physician. 2012;85(7):716–722. AAFP
5. Simon BE, Hoffman S, Kahn S. Classification and surgical correction of gynecomastia. Referenced via Wikipedia: Gynecomastia

Frequently Asked Questions

Is gynecomastia a serious medical condition?

Gynecomastia is not a life-threatening condition in most cases. It is a benign enlargement of glandular breast tissue caused by hormonal imbalance.

However, it can cause physical discomfort, nipple sensitivity, and significant psychological distress including avoidance of social situations and reduced self-confidence. A clinical evaluation is always recommended to rule out rare but serious underlying causes such as hormone-secreting tumours.

Can gynecomastia go away on its own without surgery?

Pubertal gynecomastia in teenage boys resolves on its own in approximately 70–80% of cases within 6–24 months. Gynecomastia caused by a medication may resolve once that medication is discontinued.

If gynecomastia has been present for more than 12 months, the glandular tissue often becomes fibrous. Fibrous glandular tissue will not shrink on its own, and exercise or diet will not reduce it. Surgery is the only reliable treatment in these cases.

What is the difference between gynecomastia and chest fat?

Gynecomastia involves actual glandular breast tissue growth directly beneath the nipple-areola complex. It feels firm or rubbery when you press on the nipple area. Chest fat (pseudogynecomastia) is soft and does not produce this firm mass on examination.

Glandular tissue cannot be reduced by exercise or weight loss. Chest fat can. A surgeon confirms which condition is present through physical examination. See the complete comparison: gynecomastia vs chest fat.

How can I check at home if I have gynecomastia?

Two checks are useful. The pinch test compares the consistency of tissue under the nipple against abdominal fat: a firm, rubbery disc that slips under the fingers around the nipple indicates glandular tissue and supports a diagnosis of true gynecomastia. A second check is the size of the nipple-areola complex — a normal complex measures 2 to 2.5 cm, while a visibly dilated complex (3 to 3.5 cm or more) suggests underlying glandular tissue. An ultrasound scan, on referral from a plastic surgeon, gives a definitive answer. Home checks are a starting point, not a substitute for clinical examination.

What grade of gynecomastia requires surgery?

All four grades of gynecomastia can be treated surgically. Grades I and II typically require 45–60 minutes and do not involve skin correction. Grades III and IV involve moderate to significant skin excess and require a more comprehensive surgical approach, including skin tightening.

Grade II is the most common presentation, accounting for approximately 50% of cases at Dr DC Plastic Surgery in Pune. The appropriate grade and treatment approach are confirmed during a clinical consultation.

What causes gynecomastia in teenage boys?

Pubertal gynecomastia in teenage boys is caused by the natural hormonal fluctuations of puberty. Oestrogen levels temporarily rise relative to testosterone as the body develops, which stimulates glandular breast tissue growth in one or both sides.

The condition affects an estimated 50–60% of adolescent males to some degree. Most cases resolve without treatment within 6–24 months. When gynecomastia persists beyond two years or causes significant distress, a surgical consultation is recommended. Read more about teenage gynecomastia treatment.

Conclusion

Gynecomastia is a common, treatable condition. Understanding your type and grade is the first step toward knowing whether treatment is appropriate and what that treatment involves.

Grades I and II together account for approximately 60% of cases seen at Dr DC Plastic Surgery in Pune and are the most straightforward to correct surgically. Grades III and IV require more comprehensive correction but achieve strong results with appropriate planning.

If you have noticed chest enlargement and are unsure of your grade, the next step is a clinical examination. Dr. Dhruv Chavan offers free in-person consultations at six locations across Pune: Baner, Kharadi, NIBM, Pimple Saudagar, Prabhat Road, and Pune Station.

Schedule a free consultation with Dr. Dhruv Chavan

For a complete overview of gynecomastia treatment options, visit the gynecomastia treatment overview.