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Body odor: Causes, prevention, and treatments

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Body odor is a fairly common issue that can affect a person’s 

quality of life. It occurs due to bacterial processes in sweat and not due to sweat itself.

It is a common misconception that sweat itself causes body odor. In actual fact, human sweat is almost odorless.

Body odor occurs due to bacteria on a person’s skin breaking down protein molecules within sweat and producing odor as a result.

Body odor is a common problem, but it can severely affect a person’s quality of life. Although its root causes are often down to a person’s hygiene practices, body odor can indicateTrusted Source a more serious underlying condition in some instances.

The body can produce odors in the mouth and other cavities, as well as in bodily fluids. However, this article focuses on odors originating from a person’s skin and the bacterial processes in sweat.

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Body odor is an umbrella term for natural smells originating from a person.

The human body can produce a range of substances that carry a smell, known as odorants. Many of these are important for regular bodily function and, in small quantities, do not lead to unpleasant odors. However, an excessive accumulation of these compounds on the skin can cause noticeable smells.

Body odor usually becomes more evidentTrusted Source during puberty, as hormones and sweat glands become more active at this time. People with obesity and individuals with certain medical conditions, such as diabetes, are also more susceptible to having body odor.

Sweat itself is virtually odorless to humans. However, the rapid multiplication of bacteria and their breaking down of sweat into acids can cause unpleasant smells. As a result, people who sweat a lot — such as those with hyperhidrosis — may be more susceptible to developing body odor.

Body odor is most likely to occur in the following places:

  • the feet
  • the groin
  • the armpits
  • the genitals
  • pubic and other hair
  • the belly button
  • the anus
  • behind the ears

A person’s diet, natal sex, health conditions, and medications help create a unique body odor. Some researchTrusted Source suggests that people, and moreso animals, are adept at identifying individuals by these smell profiles.

A person’s skin contains both eccrine and apocrine sweat glands.

Apocrine glands start to function at puberty and are associated with hair follicles in the underarms and groin. These glands produce a viscous, protein-rich sweat that is initially odorless. However, as bacteria break down the abundance of proteins, they will produce odorant molecules in greater concentrations, causing body odor.

In contrast, eccrine sweat glands predominantly regulate body temperature through perspiration and are not as strongly linked with body odor.

Having a large concentration of apocrine glands in the armpits and groin makes these areas susceptible to the rapid development of body odor. However, body odor can occur almost anywhere on a person’s body.

Although there is no universal treatment for the causes of body odor, taking the following steps may help controlTrusted Source body odor:

Deodorants and antiperspirants with natural ingredients are available to purchase online.

A person may also experience noticeable body odors in areas that are often covered by clothes, such as the feet. A combination of increased humidity and sweat trapped in the fabric can promote bacterial multiplication and activity. This can lead to body odor.

To prevent this, a person may wish to pay extra attention to these areas when washing and ensure that they are completely dry before putting on clean clothes. Wearing natural fibers may also help with the evaporation of sweat and help reduce bacteria buildup.

Consuming chilies, onions, garlic, and other potent foods can also make some people’s sweat more pungent. If a person consumes excessive amounts of protein, this may also affect their body odor.

If body odor is affecting a person’s quality of life and home remedies have not worked, a doctor may recommend additional treatments. These may include:

  • Aluminum chloride: A doctor or dermatologist may recommend prescription antiperspirants containing aluminum chloride. Aluminum chloride is absorbed into the skin and reduces the amount a person sweats. Prescription antiperspirants can contain 10–30%Trusted Source aluminum chloride.
  • Botulinum toxin (Botox): A medical professional may recommend Botox treatment for people who sweat excessively. They may inject Botox directly into the skin, which can block the release of chemicals that trigger sweating. Some reports indicate that Botox injections in the armpits can reduce sweating by 82–87%.
  • Surgery: When self-care and medicinal measures are not effective at treating severe body odor, a doctor can perform a surgical procedure called an endoscopic thoracic sympathectomy (ETS). This severs the sweat-controlling nerves below the skin of the armpits. This option is a last resort, and it runs the risk of causing damage to other nerves and arteries in the area. However, a 2019 review found that more than 90%Trusted Source of people who underwent ETS reported improved quality of life after the procedure.

Some medical conditions may change how much a person sweats or the odor their body produces. These can be indicators of more serious conditions. If a person notices any of these changes, they should contact a doctor immediately.

For example, an overactive thyroid gland or menopause can make people sweat much more, while liver disease, kidney disease, and diabetes can change the consistency of sweat.

A person should contact a doctor if:

  • They start sweating at night.
  • Bouts of sweating occur irregularly or at excessive levels.
  • They begin to experience cold sweats.
  • Changes to their sweating are impacting their daily life.

A person should also contact a doctor if their body odor suddenly smells different. A fruity smell could indicateTrusted Source diabetes due to having high levels of ketones in the bloodstream, while liver or kidney disease can often lead to a bleach- or ammonia-like smell due to a buildup of toxins in the body.

Body odor is a common occurrence, and people can often remedy it at home. It is a byproduct of bacteria breaking down proteins in a person’s sweat and not due to the smell of sweat itself. Although people often associate body odor with unpleasant smells, this is not always the case.

Thoroughly washing, using antiperspirants, and shaving may all assist a person in managing unwanted body odor. If symptoms persist, a doctor may recommend prescription treatments and, in some cases, surgery.

Body odor and excessive sweating may also be indicators of an underlying health condition. If a person notices unexpected changes in their body odor or volume of sweat, they should consult a medical professional immediately.


Everything you need to know about bad breath

Bad breath affects an estimated 25 percent of people. There are a number of possible causes of halitosis, but the vast majority come down to oral hygiene.

It is also known as halitosis or fetor oris. Halitosis can cause significant worry, embarrassment, and anxiety but it is relatively easy to remedy.

This MNT Knowledge Center article will discuss the potential origins of bad breath, diagnosis and how to treat it.

Fast facts on bad breath

Here are some key points about bad breath. More detail and supporting information is in the main article.

  • Bad breath is estimated to affect 1 in 4 people globally.
  • The most common cause of halitosis is bad oral hygiene.
  • If particles of food are left in the mouth, their breakdown by bacteria produces sulfur compounds.
  • Keeping the mouth hydrated can reduce mouth odor.
  • The best treatment for bad breath is regular brushing, flossing, and hydration.

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Although bad breath is associated with certain diseases, oral hygiene is the most common cause.

Bad breath is a common problem that can cause significant psychological distress. There are a number of potential causes and treatments available.

Anyone can suffer from bad breath. It is estimated that 1 in 4 people have bad breath on a regular basis.

Halitosis is the third most common reason that people seek dental care, after tooth decay and gum disease.

Simple home remedies and lifestyle changes, such as improved dental hygiene and quitting smoking, can often remove the issue. If bad breath persists, however, it is advisable to visit a doctor to check for underlying causes.

The best method to reduce halitosis is good oral hygiene. This ensures that cavities are avoided and reduces the likelihood of gum disease.

It is recommended that individuals visit the dentist for a check-up and cleaning twice a year.

The dentist may recommend a toothpaste that includes an antibacterial agent or an antibacterial mouthwash.

Alternatively, if gum disease is present, professional cleaning may be necessary to clear out the build-up of bacteria in pockets between the gums and teeth.

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Although bad breath is associated with certain diseases, oral hygiene is the most common cause.

Bad breath is a common problem that can cause significant psychological distress. There are a number of potential causes and treatments available.

Anyone can suffer from bad breath. It is estimated that 1 in 4 people have bad breath on a regular basis.

Halitosis is the third most common reason that people seek dental care, after tooth decay and gum disease.

Simple home remedies and lifestyle changes, such as improved dental hygiene and quitting smoking, can often remove the issue. If bad breath persists, however, it is advisable to visit a doctor to check for underlying causes.

The best method to reduce halitosis is good oral hygiene. This ensures that cavities are avoided and reduces the likelihood of gum disease.

It is recommended that individuals visit the dentist for a check-up and cleaning twice a year.

The dentist may recommend a toothpaste that includes an antibacterial agent or an antibacterial mouthwash.

Alternatively, if gum disease is present, professional cleaning may be necessary to clear out the build-up of bacteria in pockets between the gums and teeth.

Potential causes of bad breath include:

  • Tobacco: Tobacco products cause their own types of mouth odor. Additionally, they increase the chances of gum disease which can also cause bad breath.
  • Food: The breakdown of food particles stuck in the teeth can cause odors. Some foods such as onions and garlic can also cause bad breath. After they are digested, their breakdown products are carried in the blood to the lungs where they can affect the breath.
  • Dry mouth: Saliva naturally cleans the mouth. If the mouth is naturally dry or dry due to a specific disease, such as xerostomia, odors can build up.
  • Dental hygiene: Brushing and flossing ensure the removal of small particles of food that can build up and slowly break down, producing odor. A film of bacteria called plaque builds up if brushing is not regular. This plaque can irritate the gums and cause inflammation between the teeth and gums called periodontitis. Dentures that are not cleaned regularly or properly can also harbor bacteria that cause halitosis.
  • Crash diets: Fasting and low-carbohydrate eating programs can produce halitosis. This is due to the breakdown of fats producing chemicals called ketones. These ketones have a strong aroma.
  • Drugs: Certain medications can reduce saliva and, therefore, increase odors. Other drugs can produce odors as they breakdown and release chemicals in the breath. Examples include nitrates used to treat angina, some chemotherapy chemicals, and some tranquilizers, such as phenothiazines. Individuals who take vitamin supplements in large doses can also be prone to bad breath.
  • Mouth, nose, and throat conditions: Sometimes, small, bacteria-covered stones can form on the tonsils at the back of the throat and produce odor. Also, infections or inflammation in the nose, throat, or sinuses can cause halitosis.
  • Foreign body: Bad breath can be caused if they have a foreign body lodged in their nasal cavity, especially in children.
  • Diseases: Some cancers, liver failure, and other metabolic diseases can cause halitosis, due to the specific mixes of chemicals that they produce. Gastroesophageal reflux disease (GERD) can cause bad breath due to the regular reflux of stomach acids.

Rarer causes of bad breath

As mentioned earlier, the most common reason for bad breath is oral hygiene, but other situations can also be to blame.

Rarer causes of bad breath include:

  • Ketoacidosis: When the insulin levels of a person with diabetes are very low, their bodies can no longer use sugar and begin to use fat stores instead. When fat is broken down, ketones are produced and build up. Ketones can be poisonous when found in large numbers and produce a distinctive and unpleasant breath odor. Ketoacidosis is a serious and potentially life-threatening condition.
  • Bowel obstruction: Breath can smell like feces if there has been a prolonged period of vomiting, especially if a bowel obstruction is present.
  • Bronchiectasis: This is a long-term condition in which airways become wider than normal, allowing for a build-up of mucus that leads to bad breath.
  • Aspiration pneumonia: A swelling or infection in the lungs or airways due to inhaling vomit, saliva, food, or liquids.

The specific odor of breath can vary depending on the cause of the problem. It is best to ask a close friend or relative to gauge your mouth odor, as it can be difficult to assess it yourself.

If no one is available, one way of checking the odor is to lick your wrist, leave it to dry, and then smell it. A bad smell on this area of the wrist is likely to suggest that you have halitosis.

Some individuals are concerned about their breath even though they may have little or no mouth odor. This condition is called halitophobia and can lead to obsessive mouth-cleansing behavior.

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Oral hygiene is the key to most bad breath issues.

Other lifestyle changes and home remedies for bad breath include:

  • Brush the teeth: Be sure to brush at least twice a day, preferably after each meal.
  • Floss: Flossing reduces the build-up of food particles and plaque from between the teeth. Brushing only cleans around 60 percent of the surface of the tooth.
  • Clean dentures: Anything that goes into your mouth, including dentures, a bridge, or a mouth guard, should be cleaned as recommended on a daily basis. Cleaning prevents the bacteria from building up and being transferred back into the mouth. Changing toothbrush every 2 to 3 months is also important for similar reasons.
  • Brush tongue: Bacteria, food, and dead cells commonly build up on the tongue, especially in smokers or those with a particularly dry mouth. A tongue scraper can sometimes be useful.
  • Avoid dry mouth: Drink plenty of water. Avoid alcohol and tobacco, both of which dehydrate the mouth. Chewing gum or sucking a sweet, preferably sugar-free, can help stimulate the production of saliva. If the mouth is chronically dry, a doctor may prescribe medication that stimulates the flow of saliva.
  • Diet: Avoid onions, garlic, and spicy food. Sugary foods are also linked to bad breath. Reduce coffee and alcohol consumption. Eating a breakfast that includes rough foods can help clean the back of the tongue.

If breath odor persists despite controlling these factors, it is recommended that an individual visits a doctor for further tests to rule out other conditions.

Often, a dentist will simply smell the breath of a person with suspected halitosis and rate the odor on a six-point intensity scale. The dentist may scrape the back of the tongue and smell the scrapings as this area can often be a source of the aroma.

There are a variety of sophisticated detectors that can rate odor more precisely.

They include the following:

  • Halimeter: This detects low levels of sulfur.
  • Gas chromatography: This test measures three volatile sulfur compounds: Hydrogen sulfide, methyl mercaptan, and dimethyl sulfide.
  • BANA test: This measures levels of a specific enzyme produced by halitosis-causing bacteria.
  • Beta-galactosidase test: Levels of the enzyme beta-galactosidase have been found to correlate with mouth odor.

The dentist will then be able to identify the likely cause of the bad breath.

SOURCE : MEDICALNEWSTODAY.COM

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