A weight on the shoulders, pain that sets in, clothes that no longer fit: gigantomastia disrupts the daily lives of many women—and sometimes men—who experience an excessive and rapid increase in breast size. Often linked to a hormonal imbalance, pregnancy, or puberty, this rare condition requires an accurate clinical diagnosis and appropriate medical care. Here you’ll find a comprehensive overview of the causes, symptoms, and surgical and non-surgical solutions, including breast reduction in Paris, as well as practical advice for relieving pain and regaining a better quality of life. Let’s first take a look at the definition of this still little-known condition.
Gigantomastia refers to the most severe form of’breast hypertrophy, an excessive and disabling enlargement of the breasts caused by overgrowth of the mammary glands. It is a rare condition that primarily affects women.
From a medical standpoint, there is no single, definitive consensus. Various thresholds are used, depending on the authors: breast volume greater than 1,500 cm³, a mass of glandular tissue protruding 800 grams per breast for some surgeons, or even up to 2 kg according to other publications. There is, however, a consensus that the volume is extreme and pathological, far exceeding the usual range of 200 to 350 cm³ per breast.
The distinction between these three terms is based primarily on the degree of severity.
Simple breast hypertrophy
Macromastia
Gigantomastia
The exact threshold varies among medical teams, but the determining factor remains the functional impact: pain, discomfort, and the inability to find a properly fitting bra in stores.
There are three main forms:
The symptoms affect both the patient's body and her daily life.
An increase in breast size may occur gradually or, in some cases, very rapidly over the course of a few months. It is generally accompanied by back pain, cervical and at shoulder level, related to constantly carrying excess weight.
The skin may show signs of stretch marks marked, some irritation under the breasts and, in the most severe cases, skin circulation disorders.
A change in posture is common, with a dorsal kyphosis : The body leans forward to compensate for the weight of the chest.
Beyond the physical pain, gigantomastia affects all aspects of daily life.
Certain signs require a prompt consultation with a plastic surgeon or a doctor: a very rapid increase in breast size, and acute pain, and skin irritations (maceration under the breast), sometimes a cutaneous necrosis or recurrent infections.
An early clinical evaluation allows for an assessment of the severity of the condition and helps determine the most appropriate course of action before the physical and psychological impact worsens.
Several mechanisms have been identified, though no single cause explains all cases.
The mechanism most often cited is a hypersensitivity of breast receptors to sex hormones, particularly estrogen and progesterone. The glandular tissue then responds disproportionately to hormone levels that are otherwise normal, which explains why patients’ hormone tests often show no abnormalities.
This condition appears suddenly at the onset of a young adolescent’s first menstrual period, with no identifiable hormonal cause in the majority of cases. It requires close medical monitoring due to its rapid progression and significant psychological impact at this age.
Pregnancy-related breast enlargement occurs during pregnancy, a time when estrogen and progesterone levels naturally rise significantly. Breast tissue, which is particularly sensitive to these hormonal changes, can then grow excessively within a few weeks.
In rare cases, certain medications may be associated with excessive breast tissue growth. When no hormonal, medication-related, or genetic cause is identified after a comprehensive evaluation, the condition is referred to as idiopathic gigantomastia. This is actually the most common scenario, which makes the clinical diagnosis all the more essential.
The first step is a consultation with a plastic surgeon in Paris who specializes in breast surgery and assesses breast volume, the sternum-to-nipple distance, and the estimated weight of tissue to be removed. This physical examination also helps to objectively evaluate the impact on posture and the skin.
Depending on the patient's age and clinical context, a hormone test, a breast ultrasound and, in women over 35, a mammography may be ordered. These tests help rule out other conditions and confirm that the hypertrophy is benign.
It is essential to rule out other conditions that may mimic gigantomastia, including breast tumor or a hypertrophy caused by significant weight gain without hormonal hypersensitivity.
This differential diagnosis determines the course of further medical treatment.
Untreated gigantomastia increases the risk of cumulative physical and psychological complications.
Chronic back and neck pain, kyphosis, and painful indentations under the shoulder straps: postural problems develop gradually. Added to these are skin maceration, submammary skin infections, vascular compression that can lead to necrosis, and sometimes difficulty breathing while lying down, due to a lack of appropriate care.
The psychological impact is often as significant as the physical burden. Anxiety, difficulty getting dressed, social isolation, and body image issues are frequently reported by patients of all ages, causing lasting damage to their self-esteem.
A partial recurrence of breast volume is still possible after a reduction, particularly in the event of another pregnancy, of weight gain significant, or when the procedure is performed at a young age, before breast development is complete.
A skin laxityAssociated symptoms may also develop over time; if they are not accompanied by a return to normal volume, then they are more likely to be a Correction of Sagging Breasts or a mastopexy rather than another reduction.
This risk should be discussed with the surgeon.
The breast surgery remains, to date, the only effective treatment for confirmed gigantomastia.
A hormone treatment, particularly those made from tamoxifen, may be recommended after surgery to reduce the risk of recurrence, particularly in the juvenile form.
However, these treatments are based on limited clinical data and are not a substitute for surgery, which remains the standard of care for an already established mass.
Breast reduction is a surgical procedure that involves remove excess gland tissue, of grease and skin, while repositioning the areola. Depending on the volume to be treated, different pedicle techniques are used, and the procedure is performed under general anaesthetic and generally requiring several days in the hospital in the most severe forms.
In cases of extreme gigantomastia, when the size of the breast compromises normal blood flow to the areola, a technique involving areola graft may be necessary to ensure the safety and quality of the result. These situations are rare and are evaluated on a case-by-case basis.
| Breast reduction | Reconstructive surgery incl. VATstarting at 4,500 euros |
*Plastic surgery prices are given as an indication and are non-contractual.
The first cosmetic surgery consultation at the practice in 16ᵉ Paris is priced at 100 euros.
Treatment depends directly on the amount of tissue removed during the procedure.
In France, a Breast Reduction Covered by Insurance by the Health Insurance program requires the withdrawal of’at least 300 grams of mammary gland per breast. This threshold, codified in the act QEMA013, does not require prior approval from the CPAM’s medical advisor. If the procedure is less extensive than this, it is reclassified as cosmetic surgery and is not eligible for reimbursement.
The additional fees charged by the surgeon and anesthesiologist—which vary by practitioner—may then be covered in full or in part by the patient’s supplemental health insurance, depending on the terms of her policy.
A consultation will allow us to accurately assess your eligibility for this coverage and provide you with a detailed estimate.
The final result gradually stabilizes as the tissues and scars heal.
Patients generally report a relief quick relief from back and neck pain, a improved posture and a positive impact on the quality of daily life. Aesthetically, the breasts regain a shape and contour that are more proportionate to the rest of the body.
Regular follow-up helps support the healing process, particularly through solutions such as the Urgotouch laser, which promotes a better quality of Scar after breast reduction surgery.
The final result is generally evaluated between 6 and 12 months after the procedure. Subsequent weight loss may also slightly affect the final volume, a topic discussed in more detail in our article on the Weight loss after breast reduction surgery.
If you recognize these symptoms in yourself, please feel free to contact the practice directly to discuss your situation.
Sources: https://pubmed.ncbi.nlm.nih.gov/18054304/
In France, Social Security covers breast reduction surgery for gigantomastia if the surgeon removes at least 300 grams of breast tissue per breast. This is the official technical criterion (procedure code QEMA013). Gigantomastia, which often involves the removal of much more (sometimes more than one kilogram per breast), is therefore almost always covered.
Additional fees charged by the surgeon and anesthesiologist may be covered by your supplemental health insurance
There is no «ideal» weight, but it is strongly recommended to have a stable weight and close to their Body Mass Index (BMI) normal before the procedure. Significant weight loss or gain after The procedure could affect the aesthetic outcome. The key is to maintain a stable weight to ensure long-lasting results.
Il n’y a pas de limite stricte au volume de tissu mammaire à retirer. Dans les cas de gigantomastia extrême, le chirurgien peut retirer plusieurs kilogrammes de tissu. Si le volume est tel qu’il compromet la vascularisation normale de l’aréole, une mastectomie avec greffe d’aréole peut être nécessaire pour assurer la sécurité et la qualité du résultat. Ces situations restent exceptionnelles.
Compte tenu du volume important à retirer, l’intervention pour corriger une gigantomastia nécessite presque toujours une technique en « T inversé » (ou cicatrice « en ancre de marine »). Les cicatrices se situent autour de l’aréole, à la verticale sous l’aréole, et dans le sillon sous-mammaire. Avec un suivi rigoureux et les technologies modernes de cicatrisation, elles s’atténuent considérablement au fil du temps (12 à 18 mois).
Le docteur Djian utilise des techniques de pointe et des lasers comme Urgotouch pour minimiser leur visibilité.
Une poitrine très volumineuse peut, avec le temps, entraîner un relâchement cutané associé, appelé ptôse mammaire. Lorsque cette ptôse est associée à l’hypertrophie, une Correction of Sagging Breasts peut être réalisée dans le même temps opératoire que la réduction, voire par une mastopexy seule si le volume mammaire est normal mais la peau relâchée.
Chez l’homme, on ne parle pas de gigantomastie mais de gynecomastia, un développement anormal de la glande mammaire lié à un déséquilibre entre œstrogènes et testostérone. Les causes peuvent être hormonales, médicamenteuses ou idiopathiques, et le traitement, lorsqu’il est nécessaire, repose principalement sur la chirurgie.
Dr Jérémy Djian is a plastic surgeon based at 5 square Thiers, near the Victor Hugo roundabout, in the 16th arrondissement of Paris.
He trained in Paris and worked on the team of Professor Laurent Lantieri, a leading authority on face transplant surgery.
