13 Ways to Prevent Yeast Infections

Yeasts are a type of fungus that are considered to be ubiquitous. 

This means that they exist everywhere, including in our bodies and on our skins. 

They are some of the most common causes of infections in humans, affecting millions of people yearly.

While yeast infections are generally not fatal, they cause very uncomfortable symptoms that can seriously affect your quality of life. 

This article discusses everything you need to know about how to prevent yeast infections, including the types and risk factors.

What are yeast infections?                       

A yeast infection is an infection that occurs when there is an overgrowth of yeast in a particular area of your body. 

These yeasts, scientifically known as candida, naturally exist in various parts of the body, such as the skin, mouth, throat, intestines, penis, and vagina.  

There is a wide variety of candida. The most common one that causes infections in humans is Candida albicans. Candida forms a part of your natural mix of microorganisms, referred to as normal flora. 

These organisms normally live on or in areas of your body without causing harm because there is a perfect balance between them and naturally occurring bacteria in your body. When this balance is off, the candida can grow out of control and cause an infection. 

Your immune system also plays a role in keeping these organisms in check, and when it is suppressed, there can be an overgrowth.  

This overgrowth can occur anywhere that yeast naturally occurs, which is why there are different types of yeast infections based on location. 

Some of the most common types of yeast infections are vulvovaginal candidiasis, candida balanitis, and oral candidiasis.

Vulvovaginal candidiasis

This refers to yeast infections that affect a woman’s vagina. For most people, vulvovaginal candidiasis is what comes to mind when the term “yeast infection” is mentioned because it is the most widely occurring type. 

According to the CDC, vaginal yeast infections are the second most common type of vaginal infection, and they cause up to 1.4 million outpatient visits each year.

Vaginal candidiasis causes symptoms such as itching, redness, and swelling of the vagina, pain during urination or while having sex, and abnormal vaginal discharge. 

The discharge caused by yeast infections is usually whitish to creamy in color. It is often described as similar to cottage cheese, with a clumpy consistency. However, it can also be watery in consistency. 

These symptoms are similar to those caused by UTIs, but there are key differences between UTIs and yeast infections.

Candida balanitis

Most people only picture women when they think of a yeast infection. But, while they are much more common in women, yeast infections can affect men as well.

Candida balanitis is the scientific term for a yeast infection of the penis

It generally affects the tip of the penis and causes symptoms such as burning and itching of the skin around the head of the penis, redness and swelling of the penile head, whitish discharge that resembles cottage cheese, and increased moisture on the penile skin.

Oral candidiasis

When there is yeast overgrowth in the oral cavity, it is referred to as oral candidiasis or oral thrush. This causes whitish patches on the tongue or the insides of the cheeks. 

It can spread as far as the back of the throat and affect the esophagus – the tube that connects your mouth to your stomach.

Oral candidiasis can affect anyone, but it is more common in people with a weak immune system, such as children, elderly people, people receiving chemotherapy, and people with chronic conditions that affect the immune system, like diabetes and HIV/AIDS.

Apart from the whitish patches, oral candidiasis can cause symptoms such as redness and soreness, difficulty eating and swallowing, and a reduced sense of taste.

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Causes and risk factors

As already mentioned above, yeast infections occur when there is an overgrowth of yeast cells. There are several factors and conditions that can cause or increase your risk of having an overgrowth of yeast. Some of them are:  

1) Antibiotic use

Taking antibiotics, particularly broad-spectrum antibiotics, can increase your risk of developing a yeast infection. 

This is because antibiotics can kill off healthy bacteria, which disrupts the natural balance and allows yeast to grow excessively.

2) Immunosuppression

Your immune system helps to keep naturally occurring organisms in your body at a balance and prevent them from growing out of control. 

As a result, when your immune system is weak, you are at a higher risk of yeast infections.

3) Hormonal changes

Hormonal changes in times like pregnancy, breastfeeding, and menopause can affect the balance of microbes in certain areas of your body. 

Also, hormone-based medications like hormonal-replacement therapy and birth control pills can have the same effect and predispose you to yeast infections.

4) Pregnancy

Pregnancy weakens the immune system to allow the fetus, which is like a foreign body, to live in the woman’s uterus. 

Also, as we just mentioned, hormonal changes in pregnancy can stimulate yeast overgrowth. Having conditions such as gestational diabetes can further increase the risk.

5) Unprotected sex

While it is not a common occurrence, yeast infections can be transmitted from one person to another. 

Approximately 15 percent of men develop symptoms of candida balanitis after having sex with a female partner who has a yeast infection. 

The yeast from the woman’s vagina can spread over the man’s penis and stimulate an overgrowth of already present candida. Women can also be infected by a male partner. 

In addition, yeast infections can be transmitted from the genitals to the mouth via oral sex.

It is important to note that while yeast infections can be transmitted sexually, they are not considered to be sexually transmitted infections (STIs) because you can get them even without having sex.

6) Breaks in the natural barrier

There are a number of natural barriers that protect the body from the outside world. These include the skin and the mucous membranes in the mouth, vagina, and penis. 

When these barriers are broken, normal opportunistic flora like candida can take advantage of the breach and colonize the area. 

As such, injuries like burns, cuts, or surgical incisions increase your risk of a yeast infection.  

Things that contribute to yeast infections

In addition to understanding the causes and risk factors, knowing some of the things that can worsen or contribute to yeast infections can help you prevent or avoid them. We discuss five of them below.

1) Tight clothing

Yeasts thrive in warm and moist environments. Wearing tight-fitting clothes around your genital area can trap moisture and heat, which encourages their growth.  

2) Having foreskin

As a man, being uncircumcised could predispose you to yeast infections because the foreskin can serve as a favorable moist environment for candida to grow.

Ensure that the area is kept clean and dry.  

3) Poor hygiene

Failing to keep your genital area or your mouth clean can contribute to the overgrowth of yeast.

4) Douching

For women, douching is a practice that can disrupt the natural balance of bacteria in your vagina. 

It may kill off some of the bacteria that help control yeast overgrowth and, thereby, predispose you to a yeast infection.

5) High-sugar diet

Yeast loves sugar and thrives in an abundance of it. Eating carbohydrate-dense foods like white flour and rice may predispose you to yeast infections. This is another reason why diabetes mellitus increases the risk of candidiasis.

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How to prevent yeast infections

It is important to note that you may be predisposed to frequent yeast infections, e.g., if you are immunocompromised or if you have a genetic predisposition. 

Completely avoiding and preventing yeast infections is not always possible for everyone. However, taking some steps to reduce the risk can be very helpful.

Preventing genital candidiasis

When it comes to avoiding yeast infections of the vagina and penis, here are a few things you can do:

1) Avoid sexual activity with an infected partner

Since yeast infections are transmissible, it is best to avoid having sex with someone that is infected. 

Not only does doing this lower your risk, but it also reduces discomfort in the affected person and can help them recover faster.

2) Keep genitals clean and dry

Be sure to keep your genital area clean. It is best to use unscented and mild soaps to prevent irritation. Also, keep the area dry by patting it dry after washing. 

As a woman, it is particularly important to ensure that you wipe from front to back after using the toilet. 

As a man, pay particular attention to your foreskin if you are uncircumcised. Ensure that the area is kept clean and dry.  

Use breathable underwear

It is best to wear breathable underwear and loose-fitting clothes around your pelvic area. 

Avoid materials like nylon that can trap heat and moisture. Instead, go for fabrics like cotton and linen.

4) Don’t wear wet clothes for long

Remember that yeasts thrive in moist environments. 

Avoid wearing wet clothes like swimsuits and gym outfits for long. Change out of such clothes as soon as possible.  

5) Change sanitary products regularly

If you are a woman, be sure to change the sanitary products you use during your period – e.g., tampons, pads, and panty liners – often.

6) Promote the natural balance

If you are prone to yeast infections, you can try to promote the natural balance of normal flora by eating foods with probiotics (e.g., yogurt) or by taking probiotic supplements. 

This may be particularly helpful when you are taking prescribed antibiotics. 

You could also try taking antifungal medications such as fluconazole along with antibiotics. Be sure to discuss any supplements or drugs you plan on using with your doctor.

7) Use antibiotics only when necessary

Avoid indiscriminate use of antibiotics. It is best to use antibiotics only as prescribed by a certified healthcare provider.

Preventing oral candidiasis

To reduce the odds of developing oral yeast infections, here are a few things you can do:

  • Maintain good oral hygiene by brushing and flossing your teeth at least twice daily.
  • Use a soft bristle brush to avoid injuring your mouth’s mucous membrane when you brush your teeth.
  • If you wear dentures, be sure to clean them often.
  • Visit your dentist regularly.
  • Avoid having oral sex with an infected person.
  • Consider wearing a dental dam when having oral sex.

Conclusion

Yeast infections are extremely common infections, particularly in women. 

They occur when there is an overgrowth of yeast which can be due to a disruption in the natural balance of microorganisms or a weakened immune system. 

They can also be transmitted from person to person.

The key to preventing yeast infections is to understand the causes, the risk factors, and the contributory factors. However, it is not always possible to completely avoid them. 

If you suspect that you have a yeast infection, it is best to see a doctor to get an appropriate diagnosis and treatment.

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Sources

  1. Deak, T. (2006). Environmental Factors Influencing Yeasts. In: Péter, G., Rosa, C. (eds) Biodiversity and Ecophysiology of Yeasts. The Yeast Handbook. Springer, Berlin, Heidelberg. 
  2. Bongomin F, Gago S, Oladele RO, Denning DW. Global and Multi-National Prevalence of Fungal Diseases-Estimate Precision. J Fungi (Basel). 2017.
  3. McLean RJ. Normal bacterial flora may inhibit Candida albicans biofilm formation by Autoinducer-2. Front Cell Infect Microbiol. 2014.
  4. Davis CP. Normal Flora. In: Baron S, editor. Medical Microbiology. 4th edition. Galveston (TX): University of Texas Medical Branch at Galveston; 1996. Chapter 6.
  5. Sopian IL, Shahabudin S, Ahmed MA, Lung LT, Sandai D. Yeast Infection and Diabetes Mellitus among Pregnant Mother in Malaysia. Malays J Med Sci. 2016 Jan;23(1):27-34.

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