Breast Ptosis: Grades, Causes and Treatment by Grade

Breast ptosis is the medical name for sagging breasts. Surgeons don’t describe it as “a bit droopy” or “very droopy”: they grade it, using where the nipple sits compared with the crease under the breast. The grade matters because it decides the operation. A mild ptosis can often be corrected with implants or a lift around the areola, while a severe ptosis needs a full breast lift with a longer scar to move the nipple far enough.

This guide explains each grade of breast ptosis, why nipples point down, how to check your own grade at home, and which treatment usually suits each one. If you want the full picture on why breasts sag in the first place, our guide to saggy boobs covers the causes and prevention in detail.

What Is Breast Ptosis?

Breast ptosis (pronounced “toe-sis”) means the breast and nipple have dropped lower on the chest. The word comes from the Greek for “falling”, and it’s the same term doctors use for a drooping eyelid. A ptotic breast is simply a breast with ptosis. You’ll sometimes see it called breast prolapse or droopy breasts.

A breast has no muscle inside it. Its shape is held up by three things: the skin envelope around it, the Cooper’s ligaments that run through the breast tissue, and the fixed crease at its base called the inframammary fold. As the skin and ligaments stretch over time, the breast tissue slides down over the fold and the nipple moves with it. The fold itself stays put, which is why surgeons use it as the reference point for grading.

Some degree of ptosis is normal. It isn’t a medical condition that needs treating, and it isn’t a sign of disease on its own. Women look for treatment when the change bothers them, when bras no longer fit well, or when the nipples have started to point down.

Breast Ptosis Grades: How Sagging Is Classified

The grading system most surgeons use comes from the plastic surgeon Paule Regnault, who published it in 1976. It sorts true ptosis into three grades using two landmarks: the inframammary fold, and the lowest point (lower contour) of the breast. It then adds pseudoptosis as a separate pattern. The grades below are Regnault’s, described in plain English.

Grade 1 Breast Ptosis (Mild)

The nipple sits level with the inframammary fold, or within about a centimetre of it, and still sits in front of most of the breast tissue. From the side the breast looks slightly lower than it used to but keeps a good shape. Grade 1 is often called minor or first-degree ptosis. It’s the grade most likely to be corrected with implants alone, because filling the breast lifts the nipple a little.

Grade 2 Breast Ptosis (Moderate)

The nipple has dropped below the fold but still sits above the lowest point of the breast. There is breast tissue hanging below the nipple as well as below the crease. Grade 2 ptosis breasts usually look flatter at the top and fuller at the bottom, and the nipple may start to angle slightly downwards. Grade 2 is moderate or second-degree ptosis, and it normally needs a proper lift rather than implants alone.

Grade 3 Breast Ptosis (Severe)

The nipple sits well below the fold, at the lowest point of the breast, and points down towards the floor. Most of the breast hangs below the crease. This is the grade women mean when they say their nipples point down or their breasts hang. Grade 3 is major or third-degree ptosis and is the most advanced grade in Regnault’s system. It usually needs an anchor (inverted-T) lift to remove enough skin and move the nipple far enough up.

Pseudoptosis

In pseudoptosis the nipple stays in a good position, level with or above the fold, but the lower half of the breast has slid below the crease. The breast looks bottom-heavy and empty at the top, but the nipple hasn’t really moved. Some surgeons call this glandular ptosis. It’s common after weight loss, after breastfeeding, and after breast implants are removed without replacement.

The distinction matters because lifting the nipple in pseudoptosis would put it too high. Treatment usually focuses on restoring volume and shape instead, with implants or fat transfer, sometimes combined with removing a small amount of lower breast skin.

Is There a Grade 4 Breast Ptosis?

Not in the standard system. Regnault’s classification stops at grade 3, and grade 3 already covers everything from a nipple that has just reached the bottom of the breast to one that hangs far below the fold. Some clinics and websites use “grade 4” to separate out the most extreme cases within that range, usually where the breast hangs several centimetres below the crease and the nipple faces straight down.

There is no single agreed scale behind that label. A 2023 systematic review of breast ptosis classification found seven different grading systems and four measurement methods in the medical literature, with no one system accepted for everyone. One widely cited alternative, proposed by Kirwan in 2002, stages ptosis in 1 cm steps from A (nipple 2 cm above the fold) through F (more than 2 cm below it), because each extra centimetre changes how much skin the surgeon needs to remove. If you’ve been told you have grade 4 ptosis, the practical meaning is a severe grade 3, and the treatment is the same: usually an anchor lift, often combined with implants or a reduction.

Other Patterns Surgeons Look For

Grading only describes where the nipple sits. At consultation your surgeon will also look at things the grade doesn’t capture:

• Asymmetry. It’s common for one breast to be a grade lower than the other.
• Volume. Two breasts with the same grade can need different operations if one has lost volume and the other hasn’t.
• Breast shape. A narrow base, a tight lower half or a puffy areola can suggest a tuberous breast, which looks droopy but needs a different correction.
• Skin quality. Thin skin with stretch marks stretches again more quickly after surgery, which affects technique and implant choice.

Do I Need a Breast Lift?

Whether you need a lift depends on where your nipple sits and whether your breasts have lost volume. These signs suggest a lift is likely to be part of the plan:

• Your nipple sits at or below the crease under your breast, or points towards the floor.
• Your breasts look empty at the top and full at the bottom, with most of the tissue hanging below the crease.
• Your areolas have stretched and look larger or more oval than they used to.
• You have implants, and your breast tissue has dropped below them, so the implant sits high while the breast hangs over it.
• One breast has dropped noticeably more than the other.

If your breasts have mainly lost volume and the nipple is still level with or above the crease, implants or fat transfer alone may be enough. If they’ve kept their volume but dropped, a lift on its own often does the job, and if both have happened, a lift with implants is usually recommended. Our guide to breast lift vs breast augmentation goes through that choice in detail, and the grading check below will give you a good idea of where you sit.

How to Tell What Grade of Ptosis You Have

You can get a good idea of your grade at home with a mirror. It only takes a minute:

1. Take your bra off and stand side-on to a mirror, shoulders relaxed and arms by your sides.
2. Lift one breast gently and place a finger flat along the crease underneath it, pointing towards the mirror. That’s your inframammary fold.
3. Let the breast fall back down over your finger, keeping the finger in place.
4. Compare the nipple with your finger. Level with it suggests grade 1. Below it but with breast tissue still hanging lower than the nipple suggests grade 2. At the very bottom of the breast, pointing down, suggests grade 3. If the nipple is above your finger but a lot of breast hangs below it, that suggests pseudoptosis.

The old “pencil test”, where a pencil held under the breast is supposed to stay put if the breast sags, isn’t a grading tool. It depends as much on breast size as on sagging, and it doesn’t tell you where the nipple sits.

At consultation the surgeon measures instead of estimating. They record the distance from the notch at the base of the neck to each nipple, the distance from each nipple down to the fold, the width of the breast, and how far the lower skin stretches. Comparing both sides shows any asymmetry, and the measurements are used to mark the new nipple position before surgery.

Why Do My Nipples Point Down?

Nipples point down because the skin on the lower half of the breast has stretched more than the skin on the upper half. As the lower skin lengthens, the breast tissue slides down and forward, and the nipple rotates with it until it faces the floor. Nipples pointing down are the clearest sign of grade 3 ptosis.

If your nipples are low on your breasts and point down, the nipple has moved below the fold and reached the bottom of the breast. It can’t be moved back up by exercise or a bra. A breast lift repositions it by moving the nipple and areola up on a strip of living tissue and removing the stretched skin beneath it.

If only one nipple points down, the two breasts have usually sagged by different amounts. That’s very common, and a lift can be planned differently on each side to even them up.

“Droopy nipples” can also mean long or protruding nipples rather than low ones. That is a different issue, treated with a small nipple reduction rather than a lift, and your surgeon can check which one you have.

Why Is One Breast Droopier Than the Other?

Almost everyone has some natural asymmetry, and it tends to become more obvious as the breasts sag. The larger or heavier breast usually drops further, and pregnancy, breastfeeding and weight changes rarely affect both sides equally. A smaller breast that droops more than the other, especially from the middle, is also common after breastfeeding when one side has lost more volume.

A difference of one grade between the breasts is normal and treatable in a single operation. Your surgeon may use a different lift pattern on each side, or add an implant to one side only. Our guide to uneven breasts explains the options, and breast asymmetry correction covers the surgery.

What Causes Breast Ptosis?

Breast ptosis is caused by the skin and Cooper’s ligaments stretching faster than they can recover. In a study of 132 women having breast surgery, the factors that independently predicted more severe ptosis were age, the number of pregnancies, smoking, a higher BMI, a larger bra cup size and a history of losing a large amount of weight. Breastfeeding was not a risk factor once those were accounted for.

In practice the main causes are:

• Age. Skin loses collagen and elasticity every decade, and the ligaments slacken with it. Our guide to breast changes with age explains what happens at menopause.
• Pregnancy. The breast enlarges and then shrinks back, and the effect grows with each pregnancy. Our guide to sagging breasts after breastfeeding explains why pregnancy matters more than feeding.
• Weight loss. Fat leaves the breast faster than the skin can shrink to match. See sagging breasts after weight loss.
• Breast size. Heavier breasts put more load on the skin and ligaments.
• Smoking. It damages the collagen that keeps the skin firm.

Our main guide to what causes saggy boobs goes through each cause and what you can do to slow it down.

Breast Ptosis Treatment by Grade

The aim is always the least extensive operation that gives a lasting result. The more the nipple needs to move, and the more loose skin there is, the longer the scar has to be. The main surgical options are compared in detail in our guide to types of breast lifts; here is how they line up with each grade.

Pseudoptosis and Grade 1: Implants, Fat Transfer or a Small Lift

If the nipple is level with the fold or above it, the problem is often volume rather than position. Breast augmentation with implants fills the empty upper half and can lift a grade 1 nipple slightly. Fat transfer to the breasts is a gentler option when you want a modest increase using your own tissue.

When the nipple needs to rise by a centimetre or two, a crescent lift removes a half-moon of skin above the areola, and a periareolar (doughnut) lift removes a ring of skin all the way round it. Both leave a scar only around the areola, and both are often combined with implants.

Grade 2: Vertical (Lollipop) Lift

Grade 2 ptosis usually needs the nipple raised further than an areola-only lift can manage without flattening the breast. A vertical breast lift adds a single scar running from the areola down to the crease, the “lollipop” shape. The vertical cut lets the surgeon narrow and reshape the lower breast as well as lift the nipple, which gives better projection than a periareolar lift.

Grade 3: Anchor (Inverted-T) Lift

Grade 3 ptosis has the most loose skin, especially from top to bottom. An anchor (inverted-T) lift adds a horizontal scar along the crease to the lollipop pattern, so the surgeon can remove skin in both directions. It’s the most reliable way to fix grade 3 ptosis and to correct nipples that point to the floor. In some smaller grade 3 breasts with good skin, a vertical lift can do the job instead, which your surgeon will assess.

Ptosis With Volume Loss: Breast Lift With Implants

A lift moves the nipple and tightens the skin, but it doesn’t add volume and can make the breast slightly smaller. If your breasts have sagged and emptied, particularly after children or weight loss, a breast lift with implants (augmentation mastopexy) does both jobs. It can be done in one operation or two, depending on how far the nipple has to move and how much skin needs removing; our guide on separating a lift and implants into two operations explains when each approach is safer.

Ptosis With Large, Heavy Breasts: Breast Reduction

If your breasts are large as well as ptotic, a breast reduction removes breast tissue and skin and lifts the nipple in the same operation. It uses the same incision patterns as a lift, most often the anchor pattern, and it also relieves the neck, back and shoulder strain that heavy breasts can cause.

Can Breast Ptosis Be Fixed Without Surgery?

No. Once the nipple has moved below the fold, nothing outside the body can move it back up permanently. The skin and ligaments that have stretched don’t shorten again on their own.

What non-surgical measures can do is improve how the breasts look while you’re using them. A well-fitted bra with full cups and a firm band holds the breast higher. Lifting tape works the same way for backless outfits. Chest exercises such as push-ups and presses build the pectoral muscle behind the breast, which improves the shape of the upper chest and your posture, but the breast itself sits in front of the muscle and doesn’t lift. Energy-based skin tightening, discussed in our guide to the non-surgical breast lift, can firm the skin slightly in mild cases but can’t correct grade 2 or grade 3 ptosis.

Breast Ptosis Surgery: Recovery, Scars and Results

A breast lift at Centre for Surgery takes around one and a half to three hours and is done as a day case under TIVA (total intravenous anaesthesia). Most people go home the same day in a supportive surgical bra, take one to two weeks off desk-based work, and avoid heavy lifting and strenuous exercise for about six weeks. Our breast lift recovery guide goes through each stage.

The scar follows the incision pattern: around the areola for a crescent or periareolar lift, plus a vertical line for a lollipop lift, plus a line along the crease for an anchor lift. Scars are red and firm for the first few months and usually fade to fine pale lines over 12 to 18 months. Our guide to breast lift scars covers how to look after them.

The breasts take three to six months to settle into their final shape. The result lasts many years, but the breast keeps ageing, so some gradual descent over time is normal. Keeping your weight stable, not smoking and waiting until you’ve finished having children all help the result last longer.

Satisfaction after a lift is high, but it’s worth knowing the risks. In one surgeon’s series of 252 women who had a vertical lift with implants, 94% of those surveyed said they would have the operation again and 96% would recommend it. Around one in six needed a revision. Complications in the series included persistent ptosis, scar problems, asymmetry and slow wound healing, and 13% reported some lasting numbness of the nipple. Smokers had a significantly higher risk of complications, which is why we ask patients to stop smoking for four weeks before and four weeks after surgery.

Breast Ptosis Surgery at Centre for Surgery

At Centre for Surgery, breast lifts, augmentations and reductions are performed by GMC-registered plastic surgeons, at our CQC-regulated hospital at 95–97 Baker Street, rated Good overall. The surgeon who assesses you at consultation is the surgeon who performs your operation. They will examine and measure both breasts, confirm your ptosis grade on each side, check your skin quality and volume, and recommend the least extensive operation that will give you a lasting result.

Your initial consultation is £100, redeemable against the cost of surgery if you go ahead. Our breast lift cost guide explains what affects the price, and the exact figure for your plan is confirmed in writing after your consultation. Finance is available through Chrysalis Finance, subject to status. You can see more results in our breast lift before and after gallery.

Frequently Asked Questions About Breast Ptosis

Will I lose nipple sensation after a lift?

Some change is common in the first few months, and it usually improves as the nerves recover. A minority of women have lasting numbness; in the series above, 13% reported persistent nipple numbness. Your surgeon keeps the nipple attached to its blood and nerve supply throughout the operation to reduce this.

If sagging breasts bother you, a consultation at Centre for Surgery will confirm your grade of ptosis on each side and tell you which operation would give you the result you want. Call 020 7993 4849 or complete the form below.

References

1. Regnault P. Breast ptosis. Definition and treatment. Clin Plast Surg. 1976;3(2):193-203. PMID: 1261176 ↗
2. See MH, Yip KC, Teh MS, et al. Classification and assessment techniques of breast ptosis: a systematic review. J Plast Reconstr Aesthet Surg. 2023;83:380-395. doi:10.1016/j.bjps.2023.04.003 ↗
3. Kirwan L. A classification and algorithm for treatment of breast ptosis. Aesthet Surg J. 2002;22(4):355-63. doi:10.1067/maj.2002.126746 ↗
4. Rinker B, Veneracion M, Walsh CP. Breast ptosis: causes and cure. Ann Plast Surg. 2010;64(5):579-84. doi:10.1097/SAP.0b013e3181c39377 ↗
5. Swanson E. All seasons vertical augmentation mastopexy: a simple algorithm, clinical experience, and patient-reported outcomes. Plast Reconstr Surg Glob Open. 2016;4(12):e1170. doi:10.1097/GOX.0000000000001170 ↗