Underboob Sweat: Why It Happens & How You Can Control It

underboob sweat

Some days we sweat, and some days we don’t. 

And even though we sweat almost everywhere on our body, the underboob sweat is the worst of them all – and many women would agree, especially some of us with big busts. 

Now, don’t get this wrong. 

Sweating is a normal natural body function. While this is one of our body’s ways of keeping cool, sweat in some areas of our body –most especially the boob area– is just a whole different experience. 

As terribly annoying and uncomfortable as this underboob sweat could be, it still carries a whole lot of other potential problems from skin irritation to rashes and fungal infections, among others. Not to worry, this blog discusses some of the best ways (and products) to help your breast when it sweats. 


why my breasts sweat and have rashes

The science: why your breasts sweat

Ok, before we proceed with how you can control underboob sweat so you no longer have to sweat under there like a turkey the day before Thanksgiving, it would help to understand why your breasts sweat in the first place. Knowing why this happens might prove important in knowing the right things to do to prevent this. So, let’s learn some things.

  • Sweat glands in the breast

  • The human body has two (2) types of sweat glands - eccrine and apocrine glands. While the eccrine type which produces watery and odorless sweat is found all over the body, it is the apocrine type which produces thicker and milky sweat that’s more dominant in the genital areas and underarms. They are also found in the breasts, too. 

    Sweat from the apocrine glands of the breast often contains droplets of proteins and lipids which is why they could smell so bad at times. Once the body's temperature rises or the body senses stress or anxiety, the apocrine glands of the breasts are activated and start producing sweat. Accumulation of the sweat in the underboob area creates a moist environment where harmful fungi and bacteria can grow. 

  • Breast size and breast shape/position

  • That said, other factors such as humidity and tight-fitting clothing can also contribute to this sweat. The same also applies to clothing made from synthetic materials that don’t allow the skin to breathe. Bust size can also be an influence too. Women with large breasts may be more prone to underboob sweat due to the larger surface area of the breasts. Women with droopy breasts may also face this challenge because of the way the breasts are positioned against the chest.


    underboob rashes big boob problem


    Why you shouldn’t ignore underboob sweat

    How uncomfortable the underboob sweat may make you feel can vary among individuals. For many, we might find this situation very annoying and embarrassing. 

    In some people, underboob sweat could be the difference between feeling confident and pumped up for your next presentation at a work meeting or feeling down and awkward at work or in social circles. 

    This is no doubt a serious issue for women with big boobs.

    But you shouldn’t even waive this off as a minor inconvenience even when your boobs are not that big and the sweat is not all that obvious. This is because of the potential health risks that could come with sweat accumulation in this area. 

    Some of these include;

  • Unpleasant odor due to the variety of lipids and proteins in boob sweat
  • Risk of fungal infections like candidiasis, a type of yeast that thrives in warm and moist environments.
  • Increased risk of bacterial infections, particularly in women who are breastfeeding or have cracked or irritated skin around the nipples.
  • Risk of different kinds of skin irritation, heat rash, etc. 

  • Best underwear products for managing underboob sweat 

    You know why your boobs sweat and why you should take proactive actions to control this. While there are a lot of things you can do, most of which we’ll discuss here, the first and most important is to pay attention to what you’re wearing directly on the boobs themselves - your bra and underwear. 

    The key here is to focus on what kind of products your bras are made from, and to an extent, the design. On products, you want the most breathable ones - cotton and silk. 

    This is why some products like the;


    braletter organic cotton and silk underboob sweat


    both bras from Juliemay are top of the range when you are in the market for some of the best bras for underboob sweat. 

    Juliemay bras are made from a combo of organic Pima cotton and 100% pure silk. Not only is the cotton breathable and comfortable on your skin, but the inner silk lining also helps to wick away moisture whether that is from underboob sweat or post-surgical care. 

    You might also want to check out the; 

    back support bra for underboob rashes

      Claret Silk Back Support Cotton Sports Bra and the 



    both from the same brand, Juliemay. 

    These, and some of the other bras from Juliemay are devoid of synthetic materials and any of those substances that can induce allergies and skin irritations. 

    Along with being great for underboob sweat, they are perfect for women prone to skin rashes, hives, and itchy skin as well as those hot flashes that may become more frequent as older ladies approach menopause. One of the best things about these bras is the sheer variety of sizes they come in which is a good thing for women with larger busts. These bras can go up to HH cup and size 18.

    bras for underboob sweat
    Maria from the UK has this to say about that bra;
    “Feels very good against the skin, and the material is top quality. Really rate this brand for comfort, skin breathability, and quality”

    That bra and many more from Juliemay has received mostly positive reviews from women who have found relief with them from years of needless pain and discomfort. You can, too!

    Other lifestyle tips to help prevent underboob sweat

    Fortunately, there are some practical tips that can help you keep your underboob area dry and comfortable. Find out some of them below;

  • Avoid tight-fitting clothes

  • Tight-fitting clothes can make it challenging for your skin to breathe. This is something you might want to avoid especially on hot days.

  • Powders and antiperspirants 

  • Consider powders and antiperspirants around the boobs because this can help absorb moisture and reduce sweating. In the meantime, you might want to avoid talcum-based powders for now due to alleged links with cancers of the ovary, fallopian tubes, and abdominal walls. Seek out a talc-free corn-starch-based one instead. 

    Seek out a talc-free, natural compound instead such as the Evenly Dusting Powder which is made of 100% natural clay powder. This ultra fine talc-free solution is both hypo-allergenic friendly (perfect for our sensative skin babes) and can be used on a range of things from underboob sweat, thigh chafing and can be dusted onto your breast or your Evenly Bra Balancer™ to keep it feeling fresh and comfortable all day long. 

     boob sweat, dusting poweder, bra balancer, sweaty boobs, underboob rash


    1. Fine, soft hypoallergenic powder suitable for all skin types including dry or sensitive

    2. Absorbs sweat and gives a smooth, silky feel so you feel fresh and comfortable

    3. 100% natural clay powder with a soothing neutral pH

    4. Not tested on animals and suitable for vegans

  • Maintaining good hygiene

  • Maintain good hygiene such as showering regularly and changing your clothes regularly, especially if you’ve been sweating. 

  • Staying hydrated

  • Stay well hydrated so your body can easily regulate its temperature without having to sweat excessively. 

  • Avoiding sweat-inducing foods and beverages

  • Reduce your intake of certain foods and beverages like caffeine, alcohol, and spicy foods as this can increase sweating.  

    You don’t have to let your boobies drown you…

    underboob sweat

    Excessive underboob sweating can lead to potential health risks such as skin irritation, fungal infections, and bacterial infections, so it's important to take proactive measures to prevent these issues.

    By choosing breathable clothing, using antiperspirants or powders, maintaining good hygiene habits, staying hydrated, and avoiding certain foods and beverages, we can effectively manage underboob sweat and keep it under control. 

    Remember, underboob sweat is a natural bodily function, and there's no need to feel embarrassed or ashamed about it. By taking steps to manage it, we can stay comfortable and confident in our own skin. 

    The easiest way to start paying more attention to what you wear, especially your bras. If you continue to experience excessive sweating despite these efforts, it's important to speak with a healthcare provider to discuss other treatment options.


    GOTS Certified Organic Pima Cotton as the main fabric. Comfort with Support.

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    Accredited by AllergyUK to be friendly for people with allergic reactions to synthetic fibres and sensitive skins.

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