Managing Underarm Odor: Tips for Reducing Sweat-Related Smells

About body odor?

Hello doctor, I tend to have an odor under my armpits, but it's not severe enough to be classified as axillary osmidrosis.
However, I notice that whenever I sweat, there is an odor.
My sweat itself doesn't smell, but there is definitely an odor from my armpits.
This happens even in winter; sometimes after a shower, as soon as I sweat, the odor returns.
What should I do, doctor? I have already been paying close attention to the cleanliness of my armpits.

Niming, 10~19 year old female. Ask Date: 2015/07/24

Dr. Wu Yuxin reply Dermatology

If hygiene has already been carefully maintained, it may be necessary to consider surgical treatment in orthopedics.

Reply Date: 2015/07/24

More Info

Managing underarm odor can be a challenge, especially if you find that your underarms tend to develop an odor even when you are not sweating excessively. The key to addressing this issue lies in understanding the causes of body odor and implementing effective strategies to minimize it.

Firstly, it's important to recognize that body odor is primarily caused by the bacteria that thrive in warm, moist areas of the body, such as the underarms. When sweat is secreted, it is generally odorless. However, when it comes into contact with the skin's surface, bacteria break down the sweat into fatty acids and ammonia, which can produce an unpleasant smell. Here are some tips to help manage and reduce underarm odor:
1. Maintain Good Hygiene: While you mentioned that you are already attentive to underarm cleanliness, it’s crucial to ensure that you wash your underarms thoroughly with soap and water at least once a day. Consider using antibacterial soap, as it can help reduce the number of odor-causing bacteria on your skin.

2. Use Antiperspirants or Deodorants: Antiperspirants work by blocking sweat glands to reduce perspiration, while deodorants mask odor. Look for products that contain aluminum chloride, which is effective in reducing sweat. You might also want to try clinical-strength formulations if regular products are not effective.

3. Wear Breathable Fabrics: Choose clothing made from natural fibers like cotton, which allow your skin to breathe and reduce moisture buildup. Avoid synthetic materials that can trap heat and moisture, leading to increased bacterial growth.

4. Stay Dry: If you find that you sweat excessively, consider using absorbent pads or liners in your clothing to help manage moisture. Additionally, carrying a small towel or handkerchief can help you dry off if you start to sweat during the day.

5. Dietary Considerations: Certain foods can contribute to body odor. Spicy foods, garlic, onions, and caffeine can increase sweat production and may lead to stronger body odor. Consider reducing your intake of these foods and incorporating more fruits and vegetables into your diet, which can help improve overall body odor.

6. Regular Shaving or Trimming: Hair can trap moisture and bacteria, contributing to odor. Regularly shaving or trimming your underarm hair can help minimize this effect and make it easier to keep the area clean.

7. Consult a Healthcare Professional: If you have tried these strategies and still experience significant odor, it may be worth consulting a dermatologist or healthcare provider. They can assess for any underlying conditions, such as hyperhidrosis (excessive sweating) or other skin issues that may be contributing to the problem.

8. Consider Lifestyle Changes: Stress and anxiety can also lead to increased sweating. Engaging in stress-reducing activities such as yoga, meditation, or regular exercise can help manage your overall sweat levels.

In summary, managing underarm odor involves a combination of good hygiene practices, the right products, and lifestyle adjustments. By implementing these strategies, you should be able to reduce the occurrence of odor and feel more confident in your daily activities. If the problem persists, seeking professional advice is always a good step to ensure there are no underlying health issues.

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