Chloe Zhang
Body odour, or bromhidrosis, is a common condition that affects many people. While it is usually not a cause for concern, it can be embarrassing and distressing for those who experience it. There are many potential causes of body odour, including diet, stress, and underlying medical conditions. Certain foods, such as garlic, onions, and alcohol, can alter the smell of sweat. Emotional stress can trigger the body's fight-or-flight response, leading to increased sweating and stronger body odour. In some cases, body odour may be a symptom of an underlying medical condition, such as hyperhidrosis, a disorder characterised by excessive sweating. While there is no cure for hyperhidrosis, there are treatments available to help manage the symptoms, including prescription antiperspirants, botulinum toxin injections, and surgery. Maintaining good hygiene and shaving or waxing the armpits can also help to reduce body odour.
| Characteristics | Values |
|---|---|
| Cause | Bacteria on the skin, emotional stress, diet, hormones, certain foods, genetics, hygiene practices, hyperhidrosis, thyroid issues, diabetes, marijuana use |
| Treatments | Over-the-counter deodorants and antiperspirants, prescription-strength antiperspirants, Botox injections, laser treatment, surgery, apple cider vinegar, lemon juice, antibacterial soap, shaving armpits, wearing loose-fitting and breathable fabrics, reducing stress, dietary changes |
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What You'll Learn
Deodorants and antiperspirants
Deodorants work by masking body odour with a pleasant-smelling fragrance. They are usually alcohol-based and turn the skin acidic, making it harder for bacteria to grow. Deodorants do not, however, prevent sweating. If you are prone to excessive sweating, a deodorant may not be enough to prevent body odour.
Antiperspirants, on the other hand, reduce the amount you sweat. They contain metal salts, such as aluminium, that block the sweat pores. This prevents sweat from reaching the surface of the skin, reducing the opportunity for bacteria to cause odour. Antiperspirants are often combined with deodorants to both reduce sweating and mask any remaining odour.
To get the best results from antiperspirants, it is recommended to apply them to clean, dry skin after showering and before bed. Applying antiperspirants to dirty or sweaty skin will not be effective. It is also important to note that antiperspirants may not work for people with hyperhidrosis, a condition characterised by excessive sweating. In such cases, it is advisable to consult a doctor, who may recommend prescription-strength antiperspirants or other treatments.
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Diet
Body odor is caused by the interaction of sweat with bacteria on the skin. While sweat itself does not have a smell, the bacteria on the skin mix with the sweat to produce an odor. The type of bacteria on the skin, rather than the amount of sweat, is what determines body odor.
The food we eat can influence body odor. As the body breaks down food, chemical compounds reach the apocrine glands and are then secreted as body odor. Pungent foods, such as red meat, onions, garlic, broccoli, cabbage, and cauliflower, are linked to strong body odor. High meat consumption may negatively impact body odor compared to a plant-based diet. Additionally, high-carb intake is associated with less pleasant-smelling sweat. Conversely, males who consumed a healthy diet rich in fruits and vegetables were found to have better-smelling sweat.
Vitamin and mineral deficiencies or malabsorption issues can also cause body odor. For example, scurvy, a vitamin C deficiency, can cause sweat to smell putrid.
It is important to note that body odor is influenced by multiple factors, including genetics, hormones, and other factors, in addition to diet.
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Stress
Emotional stress can trigger the body's "fight-or-flight" response, leading to increased sweating and stronger body odour. Stress and anxiety can make people sweat more than usual, and this can lead to a sudden change in the way armpits smell. Stress-related sweating tends to come from the apocrine glands, which are more likely to smell when they interact with your natural skin bacteria.
Managing stress and anxiety may help to modulate your stress reaction and minimize your physiological sweat response. Some ways to reduce stress include exercising, meditation, deep breathing, and spending time with loved ones.
If you are experiencing stress-related body odour, there are several solutions you can try. Firstly, maintaining proper hygiene and regularly cleaning your skin may help manage bacteria that could be contributing to smelly armpits. Taking a daily shower with an antibacterial, antimicrobial, or fungicide soap can help remove bacteria and reduce body odour. Shaving your armpits can also help, as sweat will evaporate more quickly and won't have as much time to interact with bacteria. Additionally, wearing loose-fitting, breathable fabrics like cotton, linen, silk, or wool can help keep your body cooler and reduce sweating.
If these solutions do not help, you may want to consider speaking to a doctor. They may recommend stronger treatments such as prescription antiperspirants, Botox injections, laser therapy, or surgery.
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Clothing
Smelly armpits, also known as body odour (BO) or bromhidrosis, are caused by bacteria breaking down otherwise odourless sweat on the skin. This process can be accelerated by certain foods, nutrient deficiencies, and medical conditions, resulting in stronger body odour.
To prevent body odour, it is recommended to wear loose-fitting, breathable clothing made from natural fabrics such as cotton, silk, or wool. These fabrics allow the skin to breathe and help regulate body temperature. It is also important to maintain good hygiene practices, such as showering daily and wearing clean clothes.
Additionally, individuals can opt for moisture-wicking fabrics, such as polyester or nylon, especially during exercise. These fabrics pull moisture away from the skin, keeping the body dry and reducing the occurrence of body odour.
It is worth noting that emotional stress can trigger increased sweating and stronger body odour. Managing stress through relaxation techniques or medical intervention may help reduce the occurrence of body odour.
In summary, maintaining good personal hygiene, wearing breathable clothing made from natural fabrics, and managing stress can help prevent and reduce body odour, specifically in the armpit region.
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Medical conditions
While body odor is usually not a cause for concern, it could be a sign of a medical condition that needs treatment.
Hyperhidrosis
Hyperhidrosis is a medical disorder that causes excessive sweating. People with hyperhidrosis sweat a lot, especially in areas with many eccrine glands, such as the hands, feet, and armpits. It affects about 3% of the population and is usually harmless. However, it can sometimes be the result of an overactive thyroid.
Bromhidrosis
Bromhidrosis is a condition of abnormal or offensive body odor. It is caused by the bacterial breakdown of sweat within the armpit area, producing fatty acids and ammonia. Apocrine bromhidrosis, the most common type, occurs after puberty as the apocrine glands become active. Eccrine bromhidrosis can be caused by certain metabolic conditions, ingestion of certain foods, or drugs.
Secondary Hyperhidrosis
Secondary hyperhidrosis refers to excessive sweating that is a symptom of another condition. It can be caused by stress and anxiety, emotional stress triggering the "fight-or-flight" response, or certain foods and drinks, such as garlic, onions, alcohol, and spices.
Other Conditions
In rare cases, body odor can be caused by specific medical conditions. For example, a sweet-smelling urine can be one of the first signs of diabetes. Additionally, people with trimethylaminuria develop a fishy odor after consuming seafood.
If you are concerned about your body odor or are unable to manage it with lifestyle changes, it is recommended to consult a doctor or dermatologist for advice and potential treatment options.
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Frequently asked questions
There could be several reasons for this. Firstly, it could be due to the type of deodorant or antiperspirant you are using. Some products contain alcohol, which can turn your skin acidic and prevent odour-triggering bacteria from forming. If you have recently changed your product, this could be the cause. Secondly, certain foods can cause your sweat to smell more unpleasant. Try removing garlic, onions, alcohol, and cruciferous vegetables from your diet to see if this helps. Finally, emotional stress can trigger your body's "fight-or-flight" response, leading to increased sweating and stronger body odour.
There are several steps you can take to manage and prevent armpit odour. Firstly, maintain good hygiene by showering daily and focusing on cleaning the areas where you sweat the most, like your armpits. You can also try using an antibacterial or antimicrobial soap to reduce the bacteria on your skin. Additionally, shaving or waxing your armpits can help reduce odour as cleaning is more effective on hairless skin.
If you have tried various deodorants or antiperspirants and nothing helps reduce your underarm odour, it is recommended to consult a doctor. They can rule out any underlying medical conditions and recommend stronger treatments, such as prescription-strength antiperspirants or botulinum toxin injections (Botox).
