I’m sure you’ve heard someone use the term “uniboob” before. Maybe – and by maybe I mean probably – you’ve experienced a uniboob yourself!

What is a uniboob?

A uniboob, also known as smooshage, is when your boobs look like one gigantic breast because they are squished together and have no separation.

Women most commonly have a uniboob when they wear a compression sports bra or a tank top that has a built-in shelf bra.

If you’re unsure what a compression sports bra is, it’s a sports bra that has one piece of fabric that covers your chest instead of two separate cups; compression sports bras are typically recommended for women who have small breasts.

I’ll elaborate more on that later.

What’s so bad about having a uniboob?

Well, there are a few answers to that question. In addition to having a distracting cyclops for breasts, it irritates your skin in general.

When our breasts are forced to touch all the time, many frustrations arise, especially if you’re well endowed:


These rashes are usually heat rashes that occur when there’s too much friction between our breasts.

The rash can appear as boils  or blisters on or under your breasts, or it can be more flat and spread out; it differs from woman to woman.


Very similar to a rash, chafing often occurs as a result of too much friction. You might know chafing all too well if you have thighs that touch, too.

As we walk or exercise, or breasts tend to bounce around. As our breasts bounce, they are continuously rubbing together, which can eventually cause chafing between your breasts. Very similar to thigh chafing, breast chafing results in raw skin that is often raised and cracked, chapped, and bloody if it’s bad enough.

Chafing of the breasts is not typically so bad that you bleed, but it is certainly possible under the right circumstances. (And by right, I certainly mean WRONG circumstances!)


Women with large breasts are more likely to suffer from boob sweat than women with small breasts, but sweating is pretty much a given when your breasts are squished together all the time.

When our boobs don’t have air to breathe, a lot of heat and moisture builds up, bringing sweat and more of the other side effects of the uniboob that I already mentioned along with it.

Not only does sweat often leave uncomfortable bumps and rashes on our breasts, but it often leaves a mild odor behind and is completely embarrassing when it shows through our clothing.

Yeast infections

Women often develop yeast infections under the folds of their breasts when they are not properly supported. Yeast thrives in warm, moist environments, so it should not come as a surprise that they develop under our boobs.

Yeast infections under our breasts cause odor, extreme itchiness, discoloration of the skin, and sometimes rashes, too.

Overall discomfort

Even if you take the painful or nasty problems out of the equation, our breasts just do not feel good when they are smooshed together. There’s not anything that feels good about a uniboob.

So what can I do about my uniboob?

Invest in an encapsulation sports bra

I sort of mentioned sports bras above, but I want to explain them further here.

To put things simply, compression sports bras – the ones I briefly mentioned earlier –  are commonly known as “uniboob bras” among women who have large breasts.

Compression sports bras will not limit the movement of your breasts – at least not enough to properly support you. While this type of sports bra is typically recommended for women with small breasts, those women can still suffer the consequences of poorly supported breasts if they choose to wear a compression bra.

Encapsulated sports bras, however, have two separate cups to keep breast movement at a minimum.

The reason it’s so important to limit breast movement is because the more our breasts are thrown around, the more our Cooper’s ligaments become strained. Cooper’s ligaments are the connective tissue that keeps our breasts perky, and the more these ligaments are strained, the more our breasts sag – plus our breasts are likely to feel sore as this happens.

Encapsulated sports bras protect our Cooper’s ligaments by  limiting unnecessary strain and preserving the elasticity of our breasts. For ultimate support, you need to purchase an encapsulation bra that comes in specific bra sizes instead of the typical XS-XXXL.

You also want your sports bra to have a back closure rather than a band that you pull over your head and shoulders. A band without a closure is only going to provide your breasts with minimum support.

I don’t want to get off topic by telling you everything you need to look for in a bra; if you are interested in knowing the exact features to look for, check out this article I wrote about the different types of bras and what features to look for when choosing one. 

The most important part to avoiding a uniboob, though, it that you have two distinguished cups instead of one big piece of fabric.

In this article, I explained the best five sports bras for women with large breasts. If you’re unsure where to start, especially since it can be difficult to find a sports bra in a specific size, my recommendations should help you quite a bit.

You also need to make sure you know your exact bra size

I have spoken on this topic numerous times! I don’t want to sound like a broken record if you’ve already seen me talk about it a thousand times, but I have written a step by step guide on fitting yourself at home.

To summarize, an estimated 80% of women are not wearing the correct bra size, so you should read my article to make sure you are properly educated on what size you need to be looking for when you purchase that encapsulated sports bra! If you’re purchasing bras based on the size a sales associate at a mass retailer told you to buy, there’s a good chance your sizing is way off.

Know that a minimizer bra is likely to give you a uniboob, too

Minimizer bras are not very different from compression sports bras. They are designed to make large breasts appear smaller than they actually are – but in order to do that, your boobs must be compressed and squished back into your chest.

Because that’s the only way a minimizer bra can work, you are likely to have a uniboob each time you wear one. These bras also make your breasts look unsupported under clothing.

To avoid a uniboob caused by a minimizer bra, consider wearing a full coverage bra instead. This obviously won’t minimize your breasts as much as a minimizer bra, but it will completely cover your breasts and keep unnecessary cleavage from showing.

Although many woman have a uniboob due to their undergarments, some unfortunate women have it as a result of a breast augmentation gone wrong.

What is a breast augmentation?

If you’re unfamiliar with the words “breast augmentation”, it’s just another term for a boob job.

Your breasts are lifted and implants are inserted to give you a bigger cup size.

What is symmastia?

Symmastia is a complication of breast implants that can be very expensive and difficult to repair.

When you have symmastia, this simply means that your implants have maneuvered to the middle of your chest, leaving no separation between them.

This can cause your skin to lift off of your breastbone and give you a “uniboob”.

In more severe cases of symmastia, when the implants are underneath your pectoral muscles, your muscles are pushed away from your sternum in addition to your skin being lifted.

As you can probably imagine, this is a serious problem because it’s very painful in addition to making your breasts deformed.

What causes symmastia?

The primary cause of symmastia is due to the over-dissection of your pectoral muscles in the center of your chest.

Over-dissection is not always accidental, although that is the case sometimes.

Some surgeons intentionally over-dissect their patients in an attempt to provide more dramatic cleavage or when they need to insert implants that are larger than usual.

Women who opt for a breast augmentation usually desire to have cleavage – I mean, isn’t that one of the main reasons to even consider having a boob job done?

Problems arise when women whose breasts are very far apart decide to have this surgery. Even with large implants, the likelihood of your breasts pushing together on their own are slim.

To bypass this problem, some surgeons insert the implants too close together, which can cause symmastia later on if the implants loosen and wiggle out of their place.

How can I avoid symmastia?

Do extensive research on your surgeon

The most effective precaution to take is to make sure your plastic surgeon is board-certified and has a great reputation among his or her clients; this will immensely decrease the chances of your surgery being botched.

Since the internet is so commonly used these days, one of the easiest ways to confirm that your doctor is board-certified is to look him or her up online. Also read their reviews on Google.

Do not spend hours reading the perfect, raving reviews about your doctor. Skip to the poor to neutral reviews and see if there is a pattern with certain types of complaints. Take into consideration how many poor reviews there are in comparison to perfect reviews.

Look at reviews on more than one website. Check Google reviews, the doctor’s business website, and even check to see if your surgeon’s business has a Facebook page. People love to go to Facebook and complain about all the horrible things that businesses do, and this will give you insight on how a lot of patients are being treated and whether or not their problems were ever addressed.

You should also look for before and after photos of your surgeon’s work. If you cannot find before and after photos on your surgeon’s website, you should probably question why that information is not available – your surgeon should be proud enough of their work to post photos to the public.

You can visit the American Board of Plastic Surgery or the American Society of Plastic Surgeons’ official website to look at board-certified physicians.

Avoid opting for implants that are extensively larger than your natural breasts

It’s more common for a woman to suffer from symmastia when her implants are much larger than what’s proportionate to her natural breasts. Your surgeon will have to open a larger portion of your breast tissue in order to fit implants that large into your breasts.

I cannot say how big is too big, because it depends on each individual woman’s body, but a board-certified surgeon should know exactly what size implants are or are not appropriate for your breasts.

Wear a post-augmentation bra

After having a breast augmentation done – and certainly after having revision surgery done – it is extremely important that you find a bra to properly support your new breasts, especially since these bras can keep your implants from moving too much too soon. I have written an article on the five best bras to wear after a breast augmentation. 

What happens if I have symmastia?

You will need a revision surgery to expose your implants, tissue, and muscle.

The breast tissue surrounding your implants will be tightened with sutures to keep them in their place. The implants should be placed at the center of your nipple areas to create fullness at the lower center of your breasts rather than in between them.

Your pectoral muscles will have to be sutured in place, too, in order to prevent symmastia from occurring all over again.

Revision surgery for symmastia is almost always successful, and symmastia in general is a rare complication; with that being said, you should not live in fear that you will suffer from symmastia as a result of a breast augmentation, but you should educate yourself and be prepared to handle it if it does happen to you.

In Summary

Uniboobs are unattractive and uncomfortable, whether they’re a result of a botched surgery or an ill-fitting bra. Luckily for women all over the world, uniboobs can generally be eliminated by taking the appropriate measures to get rid of them.

While changing what bra you wear is an easy fix for many women, the fix is not so easy for women who require revision surgery due to a botched breast augmentation.

That’s one of the primary reasons I advise women to think long and hard about having a breast augmentation done. It should be long and thought out instead of a spur of the moment decision. Find a “seasoned” surgeon who’s likely to have years of experience.

Your cyclops boob does not have to define you, ladies! Show those breasts who’s boss.

If you enjoyed this article, then we're probably very similar. I'm Victoria Melo, and I know what it’s like to be busty and struggle finding the perfect bra. Not long ago, I was just another girl wearing the wrong bra size. When I finally discovered my real size and found great bras for my busty figure, it felt like a miracle. Now, I'm a bra fitter helping hundreds of women like you find their own miracle. Click here to read my lists of my favorite bras for you.
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