
Gynaecomastia
Overview of Gynaecomastia
Gynaecomastia is the enlargement of breast tissue in males, and it is the most prevalent breast condition among men, affecting at least 30% of them at some point in their lives.
The majority of gynaecomastia cases are physiological and typically resolve by the age of 19. The condition tends to occur in three stages of a male's life: infancy, puberty, and adulthood. In some instances, gynaecomastia may be indicative of an underlying medical condition, such as tumors, advanced kidney or liver disease, thyrotoxicosis, obesity, and infertility.
Early diagnosis is important to reduce anxiety, psychological discomfort, and concerns about breast cancer. While gynaecomastia itself is benign, providing reassurance is often enough to manage it. Other treatment options include medications or surgical intervention, such as mastectomy, to remove the excess breast tissue.
Male breast cancer is uncommon, and gynaecomastia is not considered a precursor to cancer.
Important Facts of Gynaecomastia
Usually seen in
- Typically seen in individuals aged 13 to 14 years.
Gender affected
- Affects males.
Body part(s) involved
- Breasts
Prevalence
Mimicking Conditions
- Pseudogynecomastia
- Breast cancer
- Lymphoma
- Dermoid cysts
Necessary health tests/imaging
- Physical examination
- Medical history review
- Lab tests: Testosterone, Luteinizing hormone, Estradiol, Human Chorionic Gonadotropin (hCG)
- Imaging studies: Testicular ultrasound, Mammography, Breast Ultrasonography, Scrotal Ultrasound, Abdominal Ultrasound
- Karyotyping
- Biopsy
Treatment
- Androgens: Testosterone, Dihydrotestosterone, Danazol
- Antiestrogens: Clomiphene citrate, Tamoxifen
- Aromatase inhibitors: Letrozole, Anastrozole
- Surgical procedures
- Liposuction
Specialists to consult
Symptoms Of Gynaecomastia
The main symptoms of gynaecomastia include:
- Enlargement of one or both breasts.
- A small, rubbery lump beneath the nipple.
- The lump feels tender, firm, movable, and has a disc-like shape—different from the hardness of breast cancer.
- Soreness, pain, and nipple tenderness, especially in the first few months.
Important Note
If the lump is only felt in one breast, is hard, fixed, and located on the outer edge of the nipple, it could indicate breast cancer. Breast cancer is also commonly associated with other signs, including nipple discharge, skin changes, or swollen lymph nodes.
Triggering Factors Of Gynaecomastia
Gynaecomastia refers to the abnormal enlargement of male breast tissue. To understand the causes, it's important to first know the structure of the breast and the differences between male and female breasts.
Structure of the Breast
Each breast is made up of 15-20 lobes arranged like the petals of a flower. Each lobe contains smaller lobules, which produce milk in females through tiny bulbs. These structures are connected by ducts that lead to the nipple, surrounded by the dark area called the areola.
Differences in Male and Female Breast Development
Breast development in both males and females follows a similar pattern until puberty. At birth, the levels of fetal prolactin and estrogen, which were supplied by the mother, drop rapidly, halting breast development.
During puberty, a complex interplay of hormones such as estrogen, progesterone, prolactin, growth hormone, and insulin-like growth factor-1 (IGF-1) triggers the growth and maturation of female breasts. In males, testosterone counteracts breast development, limiting maturation throughout their life.
Causes of Enlarged Breasts in Males
Testosterone is converted into estrogen by the enzyme aromatase. An increase in this conversion can elevate estrogen levels, which may lead to breast tissue growth in males. This imbalance can occur due to:
- Fluctuations in testosterone levels
- An increase in aromatase activity
Did you know?
Not all cases of gynaecomastia are linked to hormonal imbalances. In some situations, genetic mutations leading to the overexpression of the aromatase enzyme can also cause gynaecomastia.
Types Of Gynaecomastia
Gynaecomastia can be categorized into two types based on its cause:
Physiological Gynaecomastia
This type of breast development is a natural part of male growth and is reversible. It can occur during three life stages:
- Neonatal Gynaecomastia: This is observed in newborns, typically due to elevated estradiol and progesterone levels from the mother. Around 65–90% of infants experience this condition.
- Pubertal Gynaecomastia: About 60% of boys show noticeable gynaecomastia by the age of 14, which generally resolves within three years of onset.
- Elderly Gynaecomastia: This type is common in men older than 60, with prevalence ranging from 36 to 57%.
Did you notice a milky discharge from your newborn’s breasts?
This is normal and harmless for the first few days after birth. Known as "witch’s milk," it results from the maternal estrogen still present in the baby’s bloodstream, and can also be influenced by estrogen in the breast milk during the early weeks.
Pathological Gynaecomastia
This type involves an underlying medical condition that causes breast enlargement in men. It may be triggered by medications, medical conditions like tumors, or other factors and requires medical intervention.
Potential Risks for Gynaecomastia
Obesity
Individuals who are overweight or obese have an increased risk of developing gynaecomastia due to higher estrogen levels. This occurs because of elevated aromatase activity in adipose tissue. The hormone leptin, which regulates weight, also increases in obesity and can promote breast tissue growth.
Family History
If a close family member has experienced gynaecomastia, there is an increased risk of developing the condition. This rare familial form often involves an elevation of aromatase activity in affected relatives.
- Certain Medications
- Certain drugs can increase the likelihood of developing gynaecomastia. Examples include:
- Hormonal treatments: Estrogen vaginal creams, gonadotropins, exogenous androgens, growth hormone, flutamide, and finasteride
- Antihypertensive drugs: Calcium channel blockers (e.g., verapamil, nifedipine, diltiazem), ACE inhibitors (e.g., captopril, enalapril), amiodarone, methyldopa, spironolactone, reserpine, and nitrates
- Psychoactive medications: Diazepam, phenytoin, etomidate, haloperidol
- Antibiotics for infections: Efavirenz, isoniazid, ethionamide, griseofulvin, metronidazole, minocycline
- Cancer medications: Busulfan, vincristine, methotrexate
- Drugs of abuse: Amphetamines, heroin, methadone, ethanol, marijuana
- Other drugs: Theophylline, omeprazole, auranofin, diethylpropion, domperidone, penicillamine, sulindac, heparin, zanoterone, cimetidine, and ranitidine
Interesting Fact!
Topical estrogen sprays, often used for menopausal hot flashes, have been associated with gynaecomastia in children due to skin contact.
Occupation
- Bodybuilders and athletes who use aromatizable androgens for muscle growth are also at higher risk of developing gynaecomastia.
Hypogonadism
- Hypogonadism, characterized by low testosterone levels, can also lead to gynaecomastia. Conditions related to hypogonadism that can cause this include:
- Klinefelter syndrome (a genetic disorder with an extra X chromosome in males)
- Kallmann syndrome (a condition with delayed or absent puberty and impaired sense of smell)
- Kennedy disease (a genetic disorder causing progressive muscle weakness)
Medical Conditions
- Certain health conditions are linked to a greater likelihood of developing gynaecomastia, including:
- End-stage kidney disease
- Liver disease
- Spinal cord disease
- Thyrotoxicosis
- Infertility
- Diabetes
Stress
- Stress may contribute to gynaecomastia by stimulating the adrenal glands to produce excess estrogen precursors.
Cancer
- Certain types of cancer or tumors can elevate estrogen levels, increasing the risk of gynaecomastia. These include:
- Testicular cancer
- Germ cell tumors
- Sex-cord tumors
- Fibrolamellar hepatocellular carcinoma
- Adrenal tumors
Diagnosis Of Gynaecomastia
The diagnostic process for gynaecomastia includes a detailed medical history and various physical and laboratory evaluations to identify its underlying cause.
Medical History
Understanding the patient’s medical history is essential in diagnosing gynaecomastia. The clinician will inquire about:
- Use of medications and alcohol consumption
- Exposure to chemicals
- Symptoms of systemic conditions like hyperthyroidism, liver disease, mumps, or renal failure
- Weight fluctuations
- Onset and duration of breast enlargement
- Pain or discharge from the nipples
- History of undescended testes
- Issues like infertility, erectile dysfunction, and reduced libido to rule out hypogonadism
- Body mass index
- Family history of gynaecomastia
Physical Examination
A thorough physical examination is crucial for distinguishing between gynaecomastia, pseudogynecomastia, and breast cancer. The clinician may ask the patient to lie down with their hands behind their head, then palpate the breast area to assess the following:
- True Gynaecomastia: Presence of a ridge of glandular tissue near the nipple-areolar complex
- Pseudogynecomastia: Difficulty in bringing the fingers together near the nipple
- Breast Cancer: Detection of a firm, immobile, irregular mass outside the areola, often accompanied by skin dimpling and nipple discharge
Additionally, the abdomen and testicles will be examined to identify signs of conditions like liver disease, kidney disease, or hyperthyroidism.
Laboratory Evaluation
Gynaecomastia involves hormone fluctuations, so a series of blood tests are conducted to determine the root cause. These tests include:
- Testosterone
- Estradiol
- Luteinizing hormone (LH)
- Human chorionic gonadotropin (hCG)
Further testing will depend on the findings from the medical history, physical examination, and hormone levels.
Imaging Tests
- Scrotal/Testicular Ultrasound: An ultrasound of the scrotum is used to detect testicular abnormalities, particularly when a mass is found during the physical exam or if hCG levels are elevated.
- Mammography (MMG): This X-ray imaging method is used to investigate the possibility of breast cancer, as it is highly sensitive and can help differentiate between gynaecomastia and cancer, thus minimizing the need for biopsies.
- Breast Ultrasonography (USG): This method is commonly used for diagnosing gynaecomastia, offering comfort and precision for male patients.
- Abdominal CT: If hCG levels are elevated and testicular ultrasound shows no abnormalities, this X-ray-based test can detect non-testicular tumors.
- Karyotyping: A blood sample is analyzed for chromosomal abnormalities. This test is typically recommended if low testosterone levels are present alongside a family history of Klinefelter syndrome.
- Biopsy: This test examines tissue for cancerous cells and is generally done if the individual is at high risk or exhibits signs of breast cancer, such as in patients with Klinefelter syndrome.
Preventive Measures Of Gynaecomastia
Obesity, a lifestyle condition marked by excessive fat accumulation, raises the risk of gynaecomastia, along with other health complications.
A comprehensive obesity screening can help identify underlying causes, which may include genetic factors, poor diet, and a sedentary lifestyle. Adopting a balanced diet and engaging in at least 30 minutes of physical activity each day can lower the chances of obesity and, consequently, gynaecomastia.
Preventing Gynaecomastia in Prostate Cancer
Men with prostate cancer who undergo anti-androgen therapy are at an increased risk of developing gynaecomastia. Prevention strategies include:
- Medications like oral tamoxifen
- Radiation therapy
Specialists to Consult
If you experience sudden breast pain, tenderness, new or rapid breast enlargement, or a breast size greater than 5 cm, consult the following specialists:
- Endocrinologist: Experts in hormone-related disorders, as gynaecomastia involves several hormonal changes.
- Andrologist: Specializes in male reproductive health and can help diagnose and treat gynaecomastia in men.
- Reproductive Endocrinologist: For cases where gynaecomastia is linked to infertility or other reproductive issues, reproductive endocrinologists are ideal.
- Oncologist: If cancer is suspected, an oncologist is the appropriate specialist to consult.
- Surgeon: If surgery is needed, a surgeon will handle the procedure.
Treatment Of Gynaecomastia
Most cases of pubertal gynaecomastia tend to resolve on their own within one to two years. Treatment typically begins after a thorough diagnosis to identify the cause of the condition. If no abnormalities are found, individuals are generally monitored closely with regular breast exams every 3 to 6 months.
Treatment Approach
The treatment strategy varies depending on the underlying cause. Common approaches include:
- Treating any identified endocrine or systemic diseases first
- Surgically removing any detected tumors, followed by chemotherapy if necessary
- Discontinuing medications that may be causing gynaecomastia, depending on the need for the ongoing therapy
- Performing breast removal surgery if a biopsy reveals cancer
- Acute gynaecomastia (lasting less than 6 months) without additional clinical findings is usually reversible with medication. However, if the condition is chronic, regression is unlikely.
In general, treatment options include:
Medications
Several medications can be used to treat gynaecomastia, including:
- Androgens: These drugs adjust testosterone levels to balance the testosterone/estrogen ratio. Examples include:
- Testosterone: Primarily used for treating hypogonadism (low testosterone levels).
- Dihydrotestosterone: A non-aromatizable androgen that does not convert into estrogen, often used for prolonged pubertal gynaecomastia.
- Danazol: A weak androgen that inhibits gonadotropin secretion, decreasing testosterone production and estrogen levels, promoting breast regression.
- Antiestrogens: These drugs lower estrogen activity, the primary driver of breast tissue development. Examples include:
- Clomiphene citrate: Often used for painful gynaecomastia.
- Tamoxifen: Provides excellent results when the cause of gynaecomastia is unknown.
- Aromatase Inhibitors: These medications block the enzyme aromatase, which converts testosterone into estrogen. Common examples include:
- Letrozole: Helps decrease breast size.
- Anastrozole: Particularly effective in pubertal gynaecomastia or cases involving Sertoli cell tumors and familial aromatase excess.
Liposuction
For individuals with excess fat, liposuction may be performed to remove fat and fluid via a vacuum tube, reducing the size of the breasts.
Surgery
Surgical removal of the breast tissue is considered in cases of:
- Long-standing gynaecomastia
- When gynaecomastia impacts daily activities, social interactions, or career
- Suspicion of breast cancer
Precautions Before Surgery
Certain actions should be avoided before undergoing gynaecomastia surgery, including:
- Avoid sunbathing for at least 2-3 weeks before surgery to prevent tanning, which can increase scarring risks.
- Refrain from smoking and consuming alcohol at least 2 weeks prior to surgery.
- Avoid blood thinners, aspirin-containing products, herbal supplements, and Vitamin E.
Post-operative Care
After surgery, the following guidelines should be followed:
- Gently pat dressings dry after bathing
- Wear a compression shirt or garment at all times except when showering and washing the garment
- Avoid swimming for at least two weeks
- Refrain from lifting weights heavier than 10 lbs for 2 weeks
- Avoid strenuous activities, heavy lifting, or sports that could strain the incision for two weeks
Health Complications Of Gynaecomastia
While gynaecomastia itself does not cause any physical complications, its impact on appearance can lead to psychological and emotional issues in men, including:
- Embarrassment
- Reduced self-esteem
- Excessive worry
- Anxiety
- Depression
- Eating disorders like anorexia and bulimia
- Social phobia
- Avoidance of social situations
Alternative Therapies For Gynaecomastia
Homemade Remedies for Gynaecomastia
Cold Compresses
Cold compresses help alleviate pain and tenderness in the breasts by contracting the swollen nerves, providing relief.
Dietary Modifications
Incorporating certain foods into the diet can help reduce body fat and improve overall health, such as:
- Lean proteins (chicken, turkey, fish)
- Fruits and vegetables
- Whole grains (oats, brown rice, whole wheat)
- Healthy fats (avocados, nuts, olive oil)
- Low-fat dairy (milk, yogurt)
- Legumes (beans, lentils)
- Foods rich in antioxidants (berries, leafy greens)
Foods to avoid include:
- Soy products
- Beetroot
- Processed and frozen foods
- Fried foods
Regular Exercise
Engaging in regular physical activity, particularly strength training exercises targeting the chest, can reduce overall body fat and make gynaecomastia less noticeable. Suggested exercises include:
- Swimming
- Walking
- Running
- Bench press
- Push-ups
- Bent forward cable crossover
- Rowing machine
Home Remedies
Some home remedies may complement conventional treatment, but it is best to consult a healthcare provider before trying any of these:
- Turmeric (Haldi): The curcumin in turmeric can help boost testosterone levels and reduce swelling in gynaecomastia. Mix one tablespoon of turmeric powder in hot milk to consume.
- Vitamin E: Rich in antioxidants, vitamin E can help reduce estrogen levels and block the aromatase enzyme. Foods high in vitamin E include:
- Sunflower and soybean oil
- Almonds
- Peanuts and peanut butter
- Spinach
- Pumpkin
- Red bell peppers
- Flax Seeds: These seeds, high in omega-3 fatty acids, can help manage gynaecomastia by boosting testosterone and lowering estrogen. Add flax seeds to smoothies, cereals, or yogurt.
- Fish Oil: Rich in omega-3 fatty acids, fish oil helps combat gynaecomastia by promoting higher testosterone levels. Cold-water fish like tuna, mackerel, and salmon are excellent sources.
- Zinc: Zinc helps regulate testosterone levels. Zinc-rich foods include raisins, cashews, oysters, lobster, and chickpeas.
- Green Tea: Known for its fat-burning properties, green tea helps prevent fat deposition around the chest.
Plant-Based Therapies
Certain herbs may aid in reducing gynaecomastia by supporting hormonal balance:
- Milk Thistle: Known as silymarin, this plant helps treat liver issues, and as liver dysfunction can contribute to breast enlargement, it may reduce breast size. The seeds can be crushed and taken with water or consumed as a supplement.
- Dandelion: This herb aids in flushing excess estrogen from the body. Add dandelion leaves to salads, sandwiches, or teas.
- Passionflower: Known for boosting testosterone, passionflower is available in many herbal supplements and can be consumed as tea made from dried flowers.
- Red Clover: This herb helps balance estrogen and testosterone levels, thus managing gynaecomastia. Prepare tea by boiling 4 grams of dried flowers in 1 cup of water.
Lifestyle Modifications Gynaecomastia
Although gynaecomastia is harmless from a medical standpoint, it can affect overall quality of life. The following strategies can help manage the condition on both physical and emotional levels:
Reduce Stress
Chronic stress can worsen gynaecomastia symptoms by disrupting hormone levels. To manage stress, consider the following techniques:
- Practice mindfulness and meditation
- Engage in yoga
- Perform deep breathing exercises
Make Thoughtful Clothing Choices
Men with gynaecomastia should opt for loose-fitting clothing that doesn't cling tightly to the chest. Dark-colored clothing can also help minimize the visibility of the condition.
Wear Compression Garments
Compression shirts or undershirts can help flatten the chest and reduce the appearance of gynaecomastia.
Maintain Good Posture
Good posture can improve body alignment and minimize the prominence of gynaecomastia. Stand tall with your shoulders back to help improve your overall appearance.
Addressing the Psychological Impact
Gynaecomastia can have a lasting emotional effect, particularly during puberty when physical changes can lead to bullying and heightened self-consciousness. Feelings of insecurity may lead to anxiety, depression, social isolation, and potentially harmful behaviors like drug or alcohol abuse.
Adolescents may also avoid activities like gym class or sports, and boys in particular may struggle with relationships. Understanding and accepting the following facts can ease emotional distress:
- Gynaecomastia is a harmless medical condition
- Most cases are physiological and resolve on their own after puberty
- Gynaecomastia is not a sign of breast cancer
Coping Strategies
Self-Acceptance
Communicating with loved ones can help manage stress and anxiety, while engaging in enjoyable activities can shift focus away from the condition. Seeking support from a therapist may also help.
Role of Family
Family and friends play an important role in recognizing signs of emotional instability and offering support. Key signs of instability include:
- Withdrawal from social interactions
- Loss of interest in usual activities
- Decrease in school or work performance
- Avoidance of intimacy
Frequently Asked Questions
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