Understanding Body Odor: Causes, Prevention, and Treatment options
~~ Dr Wey George Danlami Consultant-Family Physician
Body odor is a common issue faced by ma¹ny individuals, caused by a reaction between sweat and bacteria on the skin. While sweat itself does not have a distinctive smell, the combination of sweat and bacteria can produce odors ranging from sweet to sour to onion-like. It is important to understand the causes and factors that contribute to body odor in order to effectively manage and prevent it.
The two types of sweat glands, eccrine and apocrine, play a significant role in the development of body odor. While eccrine glands secrete sweat that does not produce an odor, apocrine glands release sweat that can smell when it interacts with bacteria on the skin. Factors such as diet, medications, hormones, and underlying medical conditions can all influence body odor. By implementing proper hygiene practices, making lifestyle changes, and exploring medical treatments, individuals can effectively address and reduce body odor.
Care and Treatment:
Body odor is what you smell when your sweat comes in contact with the bacteria on your skin. Sweat itself doesn’t smell, but when the bacteria on your skin mix with your sweat, it causes an odor. Body odor can smell sweet, sour, tangy or like onions. The amount you sweat doesn’t necessarily impact your body odor. That’s why a person can have an unpleasant body odor but not be sweaty.
Conversely, a person can sweat excessively but not smell. This is because body odor is a result of the type of bacteria on your skin and how that bacteria interacts with sweat, not the sweat itself.
Sweating is the secretion of fluids by sweat glands onto your skin’s surface. There are two types of sweat glands: eccrine and apocrine. Apocrine glands are responsible for producing body odor.
ECCRINE GLAND:
Eccrine glands secrete sweat directly to the surface of your skin. As the sweat evaporates, it helps cool your skin and regulate your body temperature. It doesn’t produce a smell. When your body temperature rises due to physical exertion or being hot, the evaporation of sweat from your skin produces a cooling effect. Eccrine glands cover most of your body, including palms and soles.
APOCRINE GLAND:
Apocrine glands open up into your hair follicles. Hair follicles are the tube-like structure that keeps your hair in your skin. You can find apocrine glands in your groin and armpits. These glands produce sweat that can smell when it comes in contact with bacteria on your skin. Apocrine glands don’t start working until puberty, which is why you don’t smell body odor in young children.
Sweating is a natural body process, but due to certain foods we eat, hygiene practices or genetics, sweat can have a bad smell once it comes into contact with your skin. Changes in the amount you sweat or the smell of your body odor could indicate a medical condition.
Who is more likely to experience foul body odor?
Males have more frequent problems with body odor because they have more hair (so they have more apocrine glands). Apocrine glands become active once a person reaches puberty, so body odor doesn’t begin until adolescence.
Possible Causes:
Body odor happens when bacteria on your skin come in contact with sweat. Our skin is naturally covered with bacteria. When we sweat, the water, salt and fat mix with this bacteria and can cause odor. The odor can be bad, good or have no smell at all. Factors like the foods you eat, hormones or medications can affect body odor. A condition called hyperhidrosis makes a person sweat excessively. People with this condition may be more susceptible to body odor because they sweat so much, but it’s often the eccrine sweat glands that cause the most discomfort with sweaty palms and feet.
Every time you sweat, there’s a chance you’ll produce an unpleasant body odor. Some people are more susceptible to foul body odor than other people.
Other factors that can affect body odor are:
*Exercise.
*Stress or anxiety.
*Hot weather.
*Having overweight/*Obesity.
*Genetics.
Why does my sweat smell bad?
There can be several reasons your sweat smells bad. For example, certain medications, supplements or foods can make your sweat smell bad. Remember, the sweat itself isn’t what smells; it’s the bacteria on your skin combined with the sweat.
Several medical conditions and diseases are associated with changes in a person’s usual body scent:
*Diabetes.
*Gout.
*Menopause
*Overactive thyroid.
*Liver disease.
*Kidney disease.
*Infectious diseases.
If you have diabetes, a change in body odor could be a sign of diabetes-related ketoacidosis. High ketone levels cause your blood to become acidic and your body odor to be fruity. In the case of liver or kidney disease, your odor may give off a bleach-like smell due to toxin buildup in your body.
Do hormonal changes cause body odor to smell?
Yes, changes in hormones can cause your body odor to smell. *Hot flashes, night sweats and hormonal fluctuations experienced during menopause cause excessive sweating, which leads to changes in body odor. *Some people believe their body odor changes when they’re pregnant or menstruating. Research suggests a person’s body odor changes during ovulation (the time in a person’s menstrual cycle when they can become pregnant) to attract a mate.
The saying, “you are what you eat,” may apply to body odor. If you eat food rich in sulfur, you may develop body odor. *Sulfur smells like rotten eggs. When your body secretes it in your sweat, it can put off an unpleasant smell.
Examples of sulfur-rich foods are:
*Onions.
*Garlic.
*Cabbage.
*Broccoli.
*Cauliflower.
*Red meat.
Certain foods can make you sweat more. This extra sweat can give you a stronger body odor. *The foods don’t directly trigger body odor, but they can be a factor in how you smell because they affect how much you sweat. These include:
"Monosodium glutamate (MSG).
>Caffeine.
>Spices like curry powder or cumin.
>Hot sauce or other spicy food.
>Alcohol.
Eliminating or reducing these triggers may help improve your body odor.
Care and Treatmen:
Treatments for excessive sweating and body odor depend on the underlying cause, which your healthcare provider can determine through a physical exam and blood or urine tests.
Treatment for body odor could include:
Personal hygiene and lifestyle:
Keep your skin clean by taking a daily bath or shower with antibacterial soap. Focus on the areas where you sweat the most, like your armpits and groin area. *Removing some of the bacteria on your skin regularly can prevent unpleasant body odor.
Keep your armpits shaved, so sweat evaporates quickly and doesn’t have as much time to interact with bacteria. Hair is a breeding ground for bacteria.
Regularly wash clothing, and wear clean clothes.
Wear loose-fitting clothing made of cotton. This allows your skin to breathe. This rule also applies to underwear and bras.
Moisture-wicking (fabric that can pull moisture away from your skin) clothing is also helpful.
Use a topical antiperspirant, which works by pulling sweat back into your sweat glands. Sweat production decreases when your body receives a signal that your sweat glands are full. These include over-the-counter, as well as prescription, antiperspirants.
Try removing overly smelly foods from your diet or pay attention to if specific foods make your body odor worse. Garlic, onions and alcohol are a few examples of foods that may make your sweat smell more unpleasant.
Find ways to reduce your stress levels. Stress can cause your apocrine glands to activate.
Medications or procedures:
Small injections of botulinum toxin (like Botox®) in your armpits can temporarily block sweating.
Prescription medicines may prevent sweating. If your healthcare provider suggests this, they’ll caution you to be careful about using it because your body needs to sweat to cool itself when needed.
There are some severe conditions that require surgery, which involves removing sweat glands from under your arms or preventing nerve signals from reaching your sweat glands.
Antibiotics to reduce the bacteria on your skin.
A handheld device that emits electromagnetic waves can destroy sweat glands under your arms.
How do you get rid of body odor naturally?
If you want a more natural approach to treating armpit body odor, there may be options that work. Talk to your healthcare provider about:
Baking soda: Make a paste using baking soda and water. Apply the paste to your armpits and let it dry. Baking soda balances the acid on your skin and reduces odors.
Green tea: Put green tea bags in warm water. Place the soaked tea bags under your armpits for several minutes a day. Green tea may help block your pores and reduce sweating.
Apple cider vinegar: Mix apple cider vinegar with a small amount of water in a spray bottle. Spray the mixture onto your armpits. The acid in vinegar helps kill bacteria.
Lemon juice: Mix lemon juice and water in a spray bottle. Spray the mixture under your arms. The citric acid in lemon juice kills bacteria.
What deodorant is best for armpits that smell?
Deodorants work by masking body odor with a more pleasant-smelling fragrance.
Antiperspirants, on the other hand, reduce how much you sweat. Make sure you use an underarm product that says “antiperspirant” on the packaging. The active ingredient in most antiperspirants is aluminum. Apply antiperspirant after showering or bathing and before bed. Make sure you apply antiperspirants to dry skin for the best results.
If over-the-counter antiperspirants don’t help, your healthcare provider may be able to prescribe a stronger antiperspirant.
What soap is best for body odor?
Antibacterial soaps wash away the bad bacteria on your skin. Look for products at your local drugstore that say “antibacterial” on the packaging. Using cleansers or spot treatments containing benzoyl peroxide (like PanOxyl® or Clearasil®) may also help. Benzoyl peroxide can also reduce the number of bacteria on your skin.
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