Breast ptosis is the clinical term for how the breast and nipple sit on the chest wall, and “grade” is simply a way of describing how far that position has changed over time. Doctors use a recognised grading system, most commonly the Regnault classification, to describe this consistently. Knowing your grade before a consultation will not tell you what procedure, if any, is right for you, but it does explain the language your doctor is likely to use.
Key takeaways
- Breast ptosis grading describes where the nipple sits in relation to the inframammary fold, the crease underneath the breast.
- The Regnault classification runs from Grade 1 (mild) to Grade 3 (severe), with a separate pattern called pseudoptosis where the nipple position looks unchanged but the tissue has dropped.
- Grading is a physical examination finding. It cannot be worked out from a photo, a mirror, or a description online.
- A higher grade does not mean a procedure is needed. The grade describes anatomy, it does not prescribe treatment.
- A breast lift (mastopexy) addresses position rather than volume, and carries real surgical risks including permanent scarring, altered sensation, and asymmetry.
- Medicare and private health insurance rebates do not apply to treatment at this practice.
What does “ptosis” actually mean?
Ptosis comes from the Greek word for “falling”. In breast anatomy, it refers to the position of the breast tissue and nipple relative to the inframammary fold, the natural crease where the underside of the breast meets the chest wall.
Every breast changes shape over a lifetime. Skin stretches, the internal connective tissue that supports the breast loosens, and the balance between breast volume and the skin envelope around it shifts. Ptosis is the clinical description of where that shift has landed. It is not a judgement about how a breast should look.
It is common. It affects people of all ages, breast sizes, and life stages, including people who have never been pregnant or breastfed.
How is breast ptosis graded? The Regnault classification
The most widely referenced grading system in the medical literature is the Regnault classification. It is based on one measurement: where the nipple sits compared with the inframammary fold. The NCBI Bookshelf, part of the United States National Library of Medicine, hosts a clinical reference chapter on breast ptosis and its classification that sets out the grades as follows.
| Grade | Clinical description | What it means in plain terms |
|---|---|---|
| Grade 1 (mild) | The nipple is at the level of the inframammary fold. | The nipple sits roughly level with the crease underneath the breast. |
| Grade 2 (moderate) | The nipple is below the level of the inframammary fold, but is not the most dependent (lowest) part of the breast. | The nipple has dropped below the crease, but there is still breast tissue hanging lower than the nipple itself. |
| Grade 3 (severe) | The nipple is below the inframammary fold and is the most dependent (lowest) part of the breast. | The nipple is both below the crease and the lowest-hanging point of the breast. |
| Pseudoptosis | The nipple is at or above the inframammary fold, but most of the breast tissue sits below it, often with a nipple-to-fold distance of more than 6cm. | The nipple position looks unchanged, but the breast tissue itself has dropped, giving a different pattern to true ptosis. |
This grading is a physical examination finding, made in person. It depends on precise measurement against your own anatomy, so it cannot be determined accurately from a photograph or a mirror.
What causes breast ptosis to develop?
Ptosis develops gradually, and it is rarely caused by one single thing. The clinical literature points to a combination of factors: ageing, pregnancy, hormonal change, weight fluctuation, and macromastia, meaning a larger-than-average breast volume relative to the chest frame.
The mechanism is mechanical as much as anything else. Over time, the skin envelope around the breast can stretch and lose some of its elasticity, while the internal ligaments that support the breast tissue do the same. As breast volume changes, these supporting structures become less able to hold everything in its original position, and the skin becomes relatively redundant, meaning there is more skin than the tissue underneath strictly needs.
None of this reflects anything a person did or did not do. Genetics, skin type, and the number and duration of any pregnancies all play a part, and two people with similar histories can end up with different grades.
Does the grade decide whether I need a lift, an augmentation, or both?
Not by itself. The grade describes anatomy. What you choose to do about it, if anything, depends on your own goals, health, and priorities, and that conversation happens at consultation, not from a table on a website.
That said, grade is one of the factors a doctor weighs when discussing options. In the published clinical literature, techniques with less visible scarring are more often discussed for less pronounced ptosis, while techniques involving a longer incision come up where ptosis is more pronounced, because more skin needs to be repositioned. Whether any of them suits your anatomy and your own tolerance for scarring is a question for an in-person assessment.
Grade is also a different question to volume. A breast lift is aimed at position, not size. Some people combine a lift with breast augmentation if they also want to discuss additional volume. Others, particularly where macromastia is the main driver of the ptosis, may discuss breast reduction instead of, or alongside, a lift. Every combination is an individual decision, not a default that follows automatically from a grade.
What does a breast lift (mastopexy) actually involve?
Mastopexy is the clinical name for a breast lift. It is generally performed as a day procedure under general anaesthetic. Healthdirect, the Australian Government’s health information service, describes the operation itself as typically taking around 90 minutes to two hours.
In broad terms, the procedure involves an incision around the areola, the darker skin surrounding the nipple, sometimes extending vertically below it and occasionally along the crease under the breast, depending on how much repositioning is needed. Excess skin is removed, the breast tissue is reshaped, and the nipple is moved into a higher position on the breast. The NCBI Bookshelf’s chapter on mastopexy sets out the technique options in more clinical detail.
The exact pattern of incision is one of the more individual decisions in this procedure. A more limited degree of repositioning can sometimes be achieved with a shorter scar, while more pronounced ptosis usually needs a longer incision to reshape and support the tissue properly. This is discussed and planned at consultation, based on your own anatomy and your own preferences around scarring. Photographs from previous procedures performed at the clinic are available in the breast lift gallery, for anyone who wants to see the range of incision patterns in practice.
What does recovery involve?
Recovery varies between individuals, and your own timeline is worked out at consultation rather than assumed from general figures. As general guidance, healthdirect describes arm movement as uncomfortable for around two to three weeks after a breast lift, with a similar period before a return to normal day-to-day activity. Return to work is commonly around two weeks afterwards, depending on the physical demands of the job.
Final results are not immediate. Swelling takes time to settle, and scars continue to fade and soften for months, with healthdirect noting that the overall result typically continues to settle over around six months. A supportive garment, activity restrictions, and follow-up appointments are typically part of a recovery plan, though the specifics are set by your doctor based on the technique used and your own healing.
Risks and considerations
A breast lift is a surgical procedure, and like any surgery it carries real risks. This list is general information, not a complete account of every possible complication for every individual, and it should be discussed in full with your doctor.
Documented risks and complications of mastopexy include:
- Infection at the incision site, which may need antibiotics or further treatment.
- Bleeding, including the uncommon possibility of a blood or fluid collection under the skin that needs to be drained.
- Scarring, which is permanent. Some people develop thickened (hypertrophic) or raised (keloid) scarring, and the visibility of scarring depends on the incision technique used.
- Asymmetry, in breast shape, size, or nipple position, which can occur even when both sides are treated identically, and which may need a further procedure to address.
- Changes in nipple or skin sensation, ranging from reduced sensation to increased sensitivity. Healthdirect notes that altered sensation usually resolves within a year, though this is not the case for everyone.
- Delayed wound healing, including around the nipple, which in rare cases can affect the tissue’s blood supply.
- Reduced ability to breastfeed in future, which is worth raising at consultation if this matters to your plans.
- The possibility of revision surgery, either because ptosis recurs over time (breast tissue continues to age after any procedure) or because the initial result needs adjustment.
General anaesthetic carries its own separate risks, which are discussed by the anaesthetic team as part of planning. The clinical literature cited above reports an overall complication rate of around 1% for mastopexy alone, rising to under 2% when combined with breast augmentation, most commonly bleeding or infection.
All surgical procedures carry risks; results vary between individuals. This is general information only, and your doctor will go through your personal risk profile in detail before any decision is made.
When to seek advice
Understanding your grade is a starting point for a conversation, not a diagnosis that requires immediate action. Ptosis on its own is not an emergency and does not need urgent treatment.
Contact the clinic if you experience:
- Fever, or redness and warmth spreading from an incision site
- Swelling, bruising, or pain that continues to increase instead of settling down
- Discharge, bleeding, or a wound that is not healing as expected
- A sudden change in breast shape, firmness, or size on one side
- Any symptom you are unsure about
For severe or urgent symptoms, seek immediate medical attention, including through a hospital emergency department, as well as contacting the clinic. If you are still at the research stage and want to understand your own anatomy, grade, and options, that conversation happens at a consultation, where an individual assessment can be made. This article is general information and cannot replace that conversation.
Common questions about breast ptosis grading
What does ‘ptosis’ mean when talking about breasts?
Ptosis is the medical term for the position of the breast and nipple as they change over time, usually described in relation to the inframammary fold, the natural crease underneath the breast. It is a descriptive term, not a diagnosis of a problem, and it affects people of all ages and breast sizes.
How do I find out what grade of ptosis I have?
Grading is a physical assessment made in person, measuring the nipple’s position against the inframammary fold. It is not something that can be judged accurately from a photo or a mirror. If you want to know your own grade, this is assessed as part of a consultation, not from a description online.
Does a higher grade mean I definitely need a breast lift?
No. The grade describes anatomy, it does not prescribe a procedure. Whether any procedure is appropriate, and which one, depends on individual goals, health, and preferences, and is worked through with your doctor rather than decided from a grade alone.
What is pseudoptosis?
Pseudoptosis describes breasts where the nipple sits at or above the inframammary fold, but most of the breast tissue has already dropped below it, often with more than 6cm between the nipple and the fold. It looks different to true ptosis, and is assessed the same way, in person.
Does a breast lift change the size of the breast?
Not usually. A breast lift (mastopexy) is designed to reposition breast tissue and the nipple rather than change breast volume. If a change in volume is also wanted, this is generally addressed separately, for example alongside a breast reduction or breast augmentation, and is discussed individually at consultation.
What causes breast ptosis?
Contributing factors described in the clinical literature include ageing, pregnancy, hormonal change, and changes in breast volume, such as weight loss and macromastia (an unusually large breast volume relative to the chest frame). Skin elasticity and the strength of the breast’s internal supporting tissue also play a role over time.
How long does recovery from a breast lift take?
Recovery varies between individuals. Healthdirect, the Australian Government’s health information service, describes arm movement as uncomfortable for around two to three weeks, with a gradual return to normal activity over a similar period and results continuing to settle for several months. Your own recovery is discussed individually at consultation.
Is breast ptosis itself dangerous?
No. Ptosis is a description of anatomy, not a medical condition that requires urgent treatment. Some people seek grading purely to understand what they are looking at and to have accurate language for a consultation, before deciding whether to explore any procedure at all.
About the author
This article was written with input from Dr Georgina Konrat, MBBS, FACCSM, AHPRA registration MED0001407863 (general registration), a cosmetic doctor at Brisbane Cosmetic Clinic in Annerley, practising since 1997. Read more about Dr Konrat’s background and registration.
Risks and disclaimer
All cosmetic medical procedures, surgical or non-surgical, carry risks, and results vary between individuals. This article is general information only and is not a substitute for individual medical advice. A consultation and GP referral are required before any procedure. Medicare and private health insurance rebates do not apply to treatment at this practice. Read more about general risks and complications of cosmetic procedures.