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Body Odor and Smelly Armpits

Here is everything you need to know about body odor and smelly armpits. Including the most common causes and a body care routine you can adopt to reduce its appearance.

What is body odor?

Body odor is the natural scent produced by the human body as a result of sweat and odor-causing bacteria interacting on the skin's surface. This odor can vary from person to person due to factors such as genetics, diet, and overall health. While sweat itself is odorless, the bacteria on our skin break it down, leading to the release of volatile compounds that can create an unpleasant smell.  

Maintaining good personal hygiene through regular bathing, wearing breathable clothing and using antiperspirants or deodorants can help minimize and manage unpleasant armpit odor effectively. 


Fact Overview

Smelly armpit odor facts:

Characteristics: An unpleasant smell that arises from the underarms due to the breakdown of sweat by bacteria on the skin

Causes: By sweat mixing with bacteria on the skin's surface. Sweat itself is generally odorless, but when it interacts with bacteria, it produces a distinct smell. 

Prevention: Maintaining good hygiene practices such as regular bathing and using antiperspirants or deodorants. 

Common areas for body odor

6 Common areas for body odor

Body odor can occur in various areas of the body, but it is most commonly associated with the following areas due to their higher concentration of sweat glands: 

  1. Armpits: The underarms are one of the primary locations for body odor because they contain a high density of sweat glands. When sweat mixes with bacteria on the skin's surface, it can result in a noticeable odor. 
  2. Groin Area: The genital and perianal areas also have a significant number of sweat glands. Sweat and bacteria can combine in these regions, leading to a distinct odor. 
  3. Feet: Feet are prone to body odor because they have many sweat glands, especially on the soles. When feet sweat and come into contact with moisture-absorbing shoes or socks, it creates an environment where odor-causing bacteria thrive, causing foot odor. 
  4. Chest and Back: The chest and back have sweat glands, and in some individuals, particularly those who engage in physical activities, body odor can develop in these areas. 
  5. Hair and Scalp: Scalp odor can occur when sweat mixes with oils and hair products. It's less common than underarm or foot odor but can be noticeable in some cases. 
  6. Face: Although not as common as other areas, facial sweat combined with bacteria can lead to facial body odor, especially in hot and humid conditions. 
5 causes of body odor

The common causes of armpit odor

Body odor, including smelly armpits, is primarily caused by the interaction between sweat and bacteria on the skin. Here are 6 common causes: 
man taking a shower
  1. Sweat and Bacteria Interaction: The most common cause of a smelly armpit odor is the interaction between sweat and bacteria on the skin's surface. Sweat is mostly composed of water and salt, but when odor-causing bacteria break down sweat, it can produce unpleasant odors. 
  2. Apocrine Sweat Glands: Apocrine sweat glands, found primarily in areas like the armpits, groin, and scalp, produce a thicker type of sweat that contains proteins and lipids. When this sweat interacts with odor-causing bacteria, it can create a stronger and more noticeable odor. 
  3. Hormonal Changes: Hormonal fluctuations, such as those during puberty, menopause or pregnancy, can lead to increased sweat production and changes in armpit odor. Hormones can influence the activity of sweat glands which can contribute to a changing body odor. 
  4. Dietary Choices: The foods you consume can influence your body odor. Strong-smelling foods like garlic, onions, and spices contain sulphur compounds that can be excreted through sweat and breath which can contribute to an unpleasant odor such as onion smelling sweat. 
  5. Stress and Anxiety: Emotional stress and anxiety can stimulate the body's sweat glands, leading to increased perspiration. Stress sweat often contains more proteins and fatty acids, providing a favorable environment for odor-producing bacteria. 
To combat smelly armpits and unpleasant body odor, maintaining good personal hygiene, using antiperspirants or deodorants, wearing breathable clothing and addressing any underlying medical conditions are effective strategies. 

9 ways to prevent body odor and smelly underarms

How to prevent body odor and smelly armpits?

Preventing unpleasant body odor and smelly armpits involves maintaining good hygiene practices and making certain lifestyle choices to minimize sweating and bacterial growth. Here are 10 tips on how to prevent body odor: 

  1. Frequent Showering: Take daily showers using a mild, antibacterial soap. Cleanse all areas prone to sweating, including armpits, groin, and feet. Showering helps remove smelly sweat and bacteria from your skin's surface. 
  2. Use Antibacterial Soap: Choose a soap that has antibacterial properties to further reduce the bacteria on your skin
  3. Shave or Trim: Consider shaving or trimming areas with dense hair growth, such as your underarms. Hair can trap sweat and bacteria, creating an environment for odor to develop. 
  4. Stay Hydrated: Drink plenty of water to maintain proper hydration. Staying hydrated can help regulate your body temperature and reduce excessive sweating. It's recommended to drink 1.5 - 2 liters of water a day. 
  5. Choose Breathable Fabrics: Wear clothing made from breathable materials like cotton or moisture-wicking fabrics. These fabrics allow air to circulate and help prevent sweat build up. Additionally, wearing these fabrics while sleeping can help mitigate strong body odor at night.  
  6. Maintain a Healthy Diet: Avoid strong-smelling foods like garlic, onions, and spicy dishes, as they can contribute to body odor. Opt for a balanced diet rich in fruits, vegetables, and whole grains. 
  7. Limit Caffeine and Alcohol: Caffeine and alcohol can increase sweating, so try to limit your consumption, especially in hot weather. 
  8. Manage Stress: High-stress levels can trigger sweat glands. Practice stress-reduction techniques like meditation, yoga, or deep breathing exercises. 
  9. Regular Exercise: Engage in regular physical activity to promote overall health and reduce stress. Shower and change clothes promptly after exercise to remove sweat and bacteria. 

Remember that armpit odor is a natural occurrence, and some level of odor is normal. However, by following these preventive measures, you can significantly manage and improve armpit odor to stay fresh and confident.  

If you have persistent or severe armpit odor despite good hygiene practices, consult a healthcare professional. 

Young man after shower
How to reduce body odor

NIVEA Body care routine to manage smelly armpits and body odor

Armpit odor can be unpleasant and cause self-consciousness. Whether it's triggered by dietary choices, hormonal changes or stress, NIVEA is here with solutions. Here is a comprehensive body care routine on how to smell good and reduce unpleasant body odor and smelly armpits: 

Shower and Cleanse:  
Begin your body care routine by taking a shower. Showering helps remove sweat odor, bacteria and impurities from your skin's surface. Bacteria thrives in warm, damp conditions, so this step is crucial to eliminate odor-causing microbes.  

Exfoliate (1-2 times a week): 
Exfoliation, done once or twice a week, helps remove dead skin cells that can trap bacteria and contribute to odor. Use a gentle exfoliating scrub to keep your skin fresh and smooth. 

Shave or Trim: 
If you have body hair, consider shaving or trimming it as needed. Hair can trap sweat and bacteria, providing an environment for odor to develop. Removing or trimming body hair could help reduce bacterial growth and improve the effectiveness of deodorant or antiperspirant.

Apply Antiperspirant or Deodorant: 
Apply an antiperspirant or deodorant to help control your sweat and odor. While antiperspirants help reduce sweat production, deodorants help to mask and neutralize odor. NIVEA offers a range of antiperspirants and deodorants that provide long-lasting protection and a pleasant fragrance.  
Remember that everyone's body is different, so you may need to adjust your routine to fit your specific needs and preferences. NIVEA’s range of body care products is designed to help you stay fresh and confident throughout the day

The different types of body odor smells

What does your body odor’s scent say about your health?

  • Garlic or Onion Odor: Persistent garlic or onion-scented sweat may be linked to your diet. These foods contain sulphur compounds that can be released through your sweat and breath. To combat this smell, consider reducing your consumption of these foods or improving your oral hygiene routine. 
  • Sour or Vinegary Odor: If you notice a sour or vinegary odor coming from your body, it could be a sign of stress and anxiety. Stress can lead to an excess of sweat and changes in your body's pH levels, resulting in this distinct smell. Incorporating stress-reduction techniques like meditation or yoga into your routine can help combat this odor. 
  • Sweet or Fruity Odor: A sweet or fruity scent coming from your body might indicate high blood sugar levels, which is a common symptom of diabetes. Regular exercise, a balanced diet, and monitoring your blood sugar levels can be essential steps in managing this odor and maintaining your overall health. 
  • Ammonia-Like Odor: An ammonia-like smell might be a sign of kidney issues, as it can indicate a buildup of waste products in your body. Staying hydrated and consuming a diet rich in kidney-friendly foods, like leafy greens and berries, can help reduce this odor and support kidney function. 
  • Musty Odor: A musty or mildew-like smell can result from excessive moisture and inadequate drying, leading to fungal or bacterial growth on the skin. Musty body odor causes can be prevented by ensuring thorough drying after bathing, and using moisture-wicking clothing. 
  • Fishy Odor: A fishy odor could be associated with bacterial vaginosis, a common vaginal infection. Maintaining good genital hygiene, wearing breathable cotton underwear, and seeking medical advice if the odor persists can help address this issue.
Individual body odors can vary, so it's important to pay attention to changes. Integrating these insights into your body care routine can help you proactively address potential concerns. If you are concerned about a sudden change in your body odor, it is recommended to visit your doctor for advice. 
young woman smiling

Gender differences in body odor and sweating

Sweating and body odor are natural processes that affect all genders, but there can be differences in the patterns and intensity among those with more testosterone or more estrogen. Ultimately, body odor is unique to each person. Regardless of gender, maintaining good hygiene practices and using appropriate products like deodorants and antiperspirants an help individuals manage and reduce odor effectively. 

If you are looking for a long-lasting antiperspirant with a fresh, floral scent, NIVEA Black & White Invisible White Blossom Dry Spray provides 48-hour odor and antiperspirant protection while also protecting against making white marks on dark clothing or yellow stains on white clothes. Plus, it contains no drying alcohol so underarms stay soft and smooth. 

For sweat and odor management with a less floral scent, NIVEA MEN Deodorant Fresh and Active Stick delivers 48 hours of protection against odor and sweat in an aluminum-free deodorant. NIVEA MEN deodorants prioritize personal hygiene and odor prevention, offering nourishing and long-lasting freshness for everyday activities. 

Summary

Smelly armpits and body odor at a glance

Unpleasant underarm smells and body odor are a common concern for many individuals. However, with proper care and knowledge, it can be effectively managed and even prevented. To tackle this issue, it's essential to understand its causes, which may include factors like hormonal changes, dietary choices, and stress.  

Developing a targeted body care routine tailored to your body's needs is vital in addressing body odor and excessive sweating. By incorporating regular hygiene practices, using suitable products like antiperspirants or deodorants, and making lifestyle adjustments such as staying hydrated and choosing breathable clothing, you can maintain freshness and confidence throughout the day. 

Smelly Armpits & Body Odor - Frequently Asked Questions

What causes smelly underarm odor?

Smelly underarm odor is primarily caused by the interaction between sweat and bacteria on the skin. When sweat mixes with the bacteria present on your skin's surface, it can produce an unpleasant odor. 

How can I prevent smelly underarm odor?

You can prevent smelly underarm odor by practising good hygiene, including regular washing of your underarms with soap and water, and using an antiperspirant or deodorant to reduce sweat and odor. 

What's the difference between antiperspirant and deodorant?

Antiperspirants are designed to reduce sweat production, while deodorants mask or neutralize odor. Many products on the market are combination antiperspirant-deodorants, which help control both sweat and odor. 

How often should I apply deodorant or antiperspirant?

You should apply deodorant or antiperspirant daily, ideally after showering or bathing. Reapplication throughout the day may be necessary for some individuals, especially during hot weather or physical activity. 

What causes body odor?

Body odor is primarily caused by the bacteria on your skin breaking down sweat and producing compounds with distinct odors. Diet, genetics and overall health can also play a role. 

Is body odor normal?

Yes, body odor is a normal part of being human. Everyone has their unique scent and it can vary based on factors like genetics, diet and lifestyle. 

How can I prevent body odor?

You can prevent body odor by practicing good hygiene, including daily showers, using antiperspirant or deodorant and wearing clean clothes made from breathable fabrics. 

Can diet affect body odor?

Yes, certain foods like garlic, onions and spices can contribute to body odor. A balanced diet with plenty of water and fruits and vegetables can help minimize odor. 

Does shaving armpits reduce smell?

Hair can trap sweat and odor-causing bacteria, providing an environment for odor to develop. Shaving body hair could help reduce odor-causing bacterial growth and help reduce the sweaty smell under the arms. 

Are there any natural home remedies for body odor?

Some people use Baking Soda, Lemon Juice or Apple Cider Vinegar as deodorants as a body odor and armpit odor home remedy. However, their effectiveness varies from person to person.