Gynecomastia: Causes, Treatment and Costs of Male Breast Correction

Gynecomastia — the enlargement of the male breast — is one of the most common complaints that bring men to a plastic surgery practice. Whether in a young man during puberty, in middle age or in older years: the excessive enlargement of male breast tissue can cause significant psychological distress, lastingly impair self-confidence, and severely restrict social activities such as sports or wearing fitted clothing. This comprehensive guide provides all relevant information on causes, diagnosis, treatment options, recovery, costs and the question of when health insurance may cover the procedure.

What is Gynecomastia?

The term gynecomastia derives from Greek: "gyné" means woman and "mastos" means breast. Medically, gynecomastia describes a benign enlargement of the mammary gland tissue in men. This is not a fat accumulation — although that often occurs simultaneously — but a true proliferation of glandular tissue that in women is responsible for breast development.

Every man has a small amount of breast glandular tissue. Normally this is so small that it is not visible or palpable from the outside. In gynecomastia, however, this tissue enlarges beyond normal levels — often due to an imbalance between male and female sex hormones, particularly estrogen and testosterone.

Statistically, gynecomastia is widespread: estimates suggest that up to 65% of all men are affected to some degree at some point in their lives. It is particularly common in certain life phases: in newborns, during puberty, and from approximately age 50 onwards. The condition can occur unilaterally or bilaterally, with the bilateral form being more frequent.

Although gynecomastia is generally harmless and does not represent an increased cancer risk, any breast change in a man should be evaluated medically. In very rare cases, a breast change in a man can indicate male breast cancer, which occurs approximately 100 times less frequently than in women.

True Gynecomastia vs. Pseudogynecomastia: The Key Distinction

Not every breast change in a man is true gynecomastia. A central aspect of diagnosis and treatment planning is the distinction between true gynecomastia and pseudogynecomastia — also called lipomastia or fatty gynecomastia.

True Gynecomastia: Glandular Tissue as the Cause

In true gynecomastia, there is an enlargement of actual mammary glandular tissue. This tissue is firm, sometimes pressure-sensitive, and lies directly behind the nipple. On examination, the physician palpates a disc-like, rubbery structure behind the areola. Glandular tissue does not respond to diet or exercise — it can only be removed by surgical intervention (mastectomy or subcutaneous mastectomy).

True gynecomastia is often triggered by a hormonal imbalance and can be painful or pressure-sensitive depending on the stage. Particularly in early stages, the glandular tissue responds to hormonal fluctuations and may still regress spontaneously under certain conditions.

Pseudogynecomastia: Fatty Tissue as the Cause

Pseudogynecomastia arises exclusively from local fat accumulations in the breast region without enlargement of glandular tissue. It is generally soft and doughy and shows no firm disc-like structure behind the nipple. Pseudogynecomastia frequently occurs with overweight or obesity and is strictly speaking not a hormonal disorder but a consequence of weight gain.

Theoretically, pseudogynecomastia could be improved through consistent diet and exercise since it involves pure fatty tissue. In practice, however, local fat deposits in the breast are often particularly stubborn and respond poorly to general weight loss. Liposuction is often the most effective solution in such cases.

Mixed Form: Combination of Glandular and Fatty Tissue

Frequently, a combination of true gynecomastia and pseudogynecomastia is present. This means both enlarged glandular tissue and increased fatty tissue accumulation in the breast region coexist. This mixed form is particularly relevant from a surgical perspective, as it requires a combination of liposuction and gland removal to achieve an optimal aesthetic result.

Causes of Gynecomastia

The causes of gynecomastia are multifaceted. At the core, there is usually a relative excess of estrogens (female sex hormones) in relation to androgens (male sex hormones). This imbalance can be triggered by various factors.

Hormonal Causes

The most common cause of gynecomastia is a hormonal imbalance. During puberty, the testes and adrenal cortex produce both estrogen and testosterone. When estrogen levels rise relative to testosterone, stimulation of breast glandular tissue can occur.

Pubertal gynecomastia: The most common form, occurring in up to 70% of all adolescents during puberty. In most cases it resolves spontaneously within 6 to 24 months.
Senile gynecomastia: With age, testosterone levels decline while estrogen levels often relatively increase. Additionally, fatty tissue enzymes (aromatase) convert androgens into estrogens, which is particularly pronounced in older men with more fatty tissue.
Hypogonadism: Various conditions leading to testosterone deficiency (e.g., Klinefelter syndrome, primary or secondary hypogonadism) can cause gynecomastia.
Hyperthyroidism: An overactive thyroid increases the production of sex hormone-binding globulin (SHBG) and can shift the estrogen-testosterone ratio.
Liver disease: Since the liver breaks down estrogens, impaired liver function (e.g., in liver cirrhosis) leads to elevated estrogen levels.
Kidney disease: Chronic renal insufficiency and hemodialysis can affect the hormonal system.
Tumors: Hormonally active tumors of the testes, adrenal glands or pituitary gland can disrupt the hormonal balance. This cause must always be ruled out.

Medication-Induced Causes

Numerous medications can trigger or exacerbate gynecomastia as a side effect. Discontinuing the responsible medication — where medically possible — can in many cases lead to regression. Medications that can cause gynecomastia include:

Anabolic steroids: Artificial steroids frequently used in bodybuilding are converted to estrogens in the body and are a common cause in young men.
Antiandrogens: Medications for prostate cancer or hair loss (e.g., spironolactone, flutamide, finasteride, dutasteride).
Heart medications: Digitalis, amiodarone, calcium channel blockers.
Stomach medications: Cimetidine, omeprazole, metoclopramide.
Antidepressants and psychotropic drugs: Various tricyclic antidepressants and neuroleptics.
HIV medications: Antiretroviral therapies can have gynecomastia as a side effect.
Cannabis and other drugs: Cannabis, heroin and amphetamines are associated with gynecomastia.

Idiopathic Gynecomastia

In approximately 25 to 30% of all cases, no clear cause can be found for the gynecomastia. This is called idiopathic gynecomastia. Despite comprehensive diagnostics, the trigger remains unclear. Individual differences in estrogen sensitivity of breast tissue or subtle, unmeasurable hormonal fluctuations may play a role. Idiopathic gynecomastia does not respond to causal therapy, making surgical treatment often the only permanent solution.

Grades of Gynecomastia

For treatment planning, assessing the severity of gynecomastia is crucial. The Simon classification (1973) and the modified Rohrich classification (2003) are established. A practical classification distinguishes the following grades:

Grade I: Mild Enlargement

Minor enlargement of breast tissue without excess skin. The tissue is palpable and possibly slightly visible but does not yet create a clear breast shape. Common in pubertal gynecomastia. In many cases, liposuction or a small subcutaneous mastectomy is sufficient.

Grade II: Moderate Enlargement

A more noticeable breast enlargement that is clearly visible, yet without skin fold excess. The breast has already taken on a feminine aesthetic. This grade typically requires a combination of liposuction and gland removal for an optimal result.

Grade III: Pronounced Enlargement with Loss of Skin Elasticity

Significant breast change with beginning skin excess. The nipple may sit low and the skin hangs slightly. This grade can in many cases still be treated with liposuction and gland removal without additional skin tightening, if skin elasticity is good.

Grade IV: Severe Enlargement with Ptosis (Drooping Breast)

The most pronounced form with considerable skin excess, significant dropping of the nipple and a truly feminine-appearing breast. This form requires gland and fat tissue removal as well as usually a skin tightening (mastopexy), which leads to longer scars.

Diagnosis of Gynecomastia

The diagnosis of gynecomastia proceeds in several steps and serves both to determine the extent and to exclude serious underlying conditions.

History and Physical Examination

The physician begins with a detailed medical history asking about the timing of onset, pain or pressure sensitivity, medication use, drug use, family history and general symptoms. Physical examination includes palpation of the breast (to distinguish glandular from fatty tissue), examination of the testes, and assessment of hair patterns and other signs of hypogonadism.

Imaging Diagnostics

Breast ultrasound (mammasonography) is the imaging method of first choice. It enables precise differentiation between glandular tissue, fatty tissue and other structures, and can exclude malignant changes. In unclear findings or in older patients, a mammography may additionally be useful. Testicular ultrasound is recommended when a testicular tumor must be ruled out.

Laboratory Diagnostics

Blood tests serve to detect or exclude hormonal and organic causes. The following values are typically determined:

Liver values (GOT, GPT, gamma-GT, bilirubin)
Kidney values (creatinine, urea)
Thyroid values (TSH, fT3, fT4)
Sex hormones: testosterone (total and free), LH, FSH, estradiol, prolactin
SHBG (sex hormone-binding globulin)
hCG (human chorionic gonadotropin — when testicular tumor is suspected)

Treatment Methods for Gynecomastia

Treatment of gynecomastia is guided by the cause, grade, tissue type (fat vs. gland) and the patient's level of distress. Conservative and surgical approaches are available.

Conservative (Non-Surgical) Treatment

Watchful waiting: For pubertal gynecomastia, an observation period of 12 to 24 months is recommended first. Most cases resolve spontaneously.

Treatment of underlying cause: If a medication, hormonal disorder or underlying condition has been identified as the trigger, treating that cause takes priority. Gynecomastia may resolve after successful causal treatment.

Medical therapy: In the florid phase, drug therapy can be considered in individual cases. Tamoxifen (antiestrogen) is used off-label and shows efficacy in the florid phase in some patients. Raloxifene (another selective estrogen receptor modulator) has shown comparable results. Aromatase inhibitors are generally only used for specific hormonal causes. Medical therapy shows limited long-term results overall and is only effective in the florid phase.

Surgical Treatment: Liposuction

Liposuction is the preferred method for pseudogynecomastia and mild forms of mixed gynecomastia where fatty tissue predominates. In this minimally invasive technique, small incisions (2–4 mm) allow cannulas to loosen and aspirate fatty tissue beneath the skin.

Advantages of liposuction for gynecomastia:

Minimal, barely visible scars (often only stab incisions)
Smooth, naturally appearing chest contour
Short healing time
Simultaneous option for contouring adjacent areas

Limitation: Pure liposuction is only sufficient when there is no or very little glandular tissue present. In true gynecomastia with fibrous glandular tissue, this must additionally be surgically removed as it cannot be aspirated.

Surgical Treatment: Gland Removal (Subcutaneous Mastectomy)

In true gynecomastia with glandular tissue, surgical removal of the gland (subcutaneous mastectomy) is the gold standard. The glandular tissue is removed through an incision at the lower edge of the areola (periareolar approach). This approach is aesthetically favorable, as the scar at the junction between the areola and normal skin is barely visible.

In more modern techniques, the surgeon often combines the periareolar incision with liposuction to remove surrounding fatty tissue and achieve a smooth, harmonious chest contour. The removed tissue is routinely sent for histological examination to exclude malignant changes.

Surgical Treatment: Combined Procedure (Liposuction + Gland Removal)

The combination of liposuction and gland removal is the most common surgical method, as most patients present with both glandular tissue and increased fatty tissue. By combining both techniques, maximum aesthetic improvement can be achieved with minimal scar risk. The procedure begins with liposuction of the entire breast region, followed by resection of the remaining glandular tissue through the periareolar approach, and finally fine-contour liposuction to harmonize the contour.

Skin Tightening for Grade IV Gynecomastia

In pronounced gynecomastia with excess skin (Grade IV), removal of glandular and fatty tissue alone is insufficient. Skin portions must additionally be removed (mastopexy), resulting in longer scars. The trade-off of "visible scar for a flat male chest" is perceived as advantageous by most affected patients.

Surgical Procedure: What to Expect

Preoperative Preparation

The preliminary consultation with the plastic surgeon includes physical examination, discussion of diagnosis and treatment options, and clarification of risks and expectations. Necessary preparatory measures include:

Preliminary examinations: blood count, ECG, possibly ultrasound or mammography
Anesthesia consultation
Stopping blood thinners (e.g., aspirin, ibuprofen) 10–14 days before the procedure
Nicotine cessation: at least 4 weeks before and after surgery — smoking significantly impairs wound healing
Fasting: nothing to eat for 6 hours before the procedure, nothing to drink for 2 hours

Anesthesia

Gynecomastia surgery can be performed under local anesthesia with sedation, twilight anesthesia (tumescent/twilight anesthesia), or general anesthesia, depending on the extent of the procedure. Lighter cases (Grades I–II) are often treated on an outpatient basis under local anesthesia; pronounced cases (Grades III–IV) generally require general anesthesia.

Surgical Steps

Marking: Before surgery, the surgeon marks the areas to be treated while the patient is standing.
Anesthesia and disinfection: Anesthesia induction, sterile draping of the surgical field.
Tumescent infiltration: Infiltration of a cooling saline solution with anesthetic (tumescent) for bleeding reduction and improved aspiration.
Liposuction: Aspiration of fatty tissue through small stab incisions (for fatty or mixed component).
Periareolar incision: Incision at the lower areolar border for removal of glandular tissue (in true gynecomastia).
Tissue removal: The glandular body is dissected and removed. Tissue is sent for histological examination.
Suture and dressing: Careful wound closure, placement of small drains (if needed), application of compression bandage.

Operating time is between 60 and 180 minutes depending on severity and method.

Recovery After Gynecomastia Surgery

The postoperative course is generally good for gynecomastia surgery. Most patients can return to work within a few days, depending on the nature of their work. Patience is required, however: the final result is not visible until 3 to 6 months after surgery, when all swelling has subsided and tissue is fully healed.

First Week

Immediately after the procedure, the following symptoms are to be expected: swelling and bruising (hematomas) in the chest area — normal and subsiding within 2–3 weeks; tension and pressure sensitivity; numbness around the nipple area — generally temporary; slight seroma discharge from wounds is possible. The compression bandage must be worn consistently. Drains, if placed, are typically removed after 24–48 hours.

First 2–4 Weeks

Sutures removed after 10–14 days (or self-dissolving sutures absorb)
Wearing compression vest: at least 4–6 weeks, around the clock
Light desk work is possible after 3–7 days
Physical work and sports: at least 4–6 weeks break
No lifting over 5 kg
Sauna, solarium, hot baths: avoid for at least 6 weeks

1 to 3 Months After Surgery

Swelling decreases significantly and breast contour improves visibly. Scars begin to fade from red/pink to lighter. Sporting activities can gradually be resumed. Light cardio from week 4–6 is possible; weight training and chest pressing only from week 8–12.

3 to 6 Months After Surgery

The final result is fully visible. Scars have faded considerably. The new chest contour is firm and harmonious. Most patients are very satisfied with the result at this point. Sporting activities are possible without restriction.

Scars After Gynecomastia Surgery

The scar result is a central concern for many patients. The good news: with experienced surgeons and appropriate technique, scars after gynecomastia surgery are generally very discreet and easily concealed.

Scars from Liposuction

With pure liposuction, only small stab incisions of 2 to 4 mm length are created, which are barely visible after healing. They are typically located in natural skin folds or at the edge of the areola.

Scars from Periareolar Incision

The most common scar from gynecomastia surgery runs semicircularly along the lower areola-skin border. This scar fades considerably within 12 to 18 months and is well camouflaged by the contrast between the areola and normal skin. With good skin quality and careful suture technique, it is barely recognizable from a few centimeters distance after complete healing.

Scar Care

To optimize the scar result, the following are recommended:

Silicone gel or silicone sheets: from week 4–6, applied for 3–6 months
Sun protection: UV radiation leads to pigmentation of the scar; protect scars with high SPF for at least 12 months
Scar massage: gentle circular massage of the healed scar from week 6
Lymphatic drainage: can reduce swelling and positively influence scar maturation

When Does Health Insurance Cover Treatment?

The question of cost coverage by health insurance is decisive for many patients. In principle: surgical treatment of gynecomastia is covered by statutory health insurance only in exceptional cases. Coverage is generally possible when: a clear medical indication exists (not merely an aesthetic wish); significant psychological distress is documented and medically confirmed; conservative treatment options have been shown to be unsuccessful; and at least Grade II severity according to Simon classification is present. Patients are advised to apply with full documentation including medical history, photo documentation, severity classification and laboratory values, prior to scheduling surgery.