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## Can You Get Oral Thrush from a Scuba Diving Mouthpiece?


Oral thrush, also known as candidiasis, is a common fungal infection caused by the fungus Candida albicans. It can affect the mouth, throat, and esophagus. Oral thrush is typically not a serious condition, but it can be uncomfortable and may lead to more serious complications in people with weakened immune systems.

One potential source of oral thrush is scuba diving. Scuba diving mouthpieces can harbor bacteria and fungi, which can be transferred to the mouth during use. In some cases, this can lead to the development of oral thrush.

Symptoms of Oral Thrush

The symptoms of oral thrush can vary depending on the severity of the infection. Common symptoms include:

White or yellow patches on the tongue, gums, or inside of the cheeks
Soreness or burning sensation in the mouth or throat
Difficulty swallowing
Loss of taste
Bad breath

Causes of Oral Thrush

Oral thrush is caused by the overgrowth of the fungus Candida albicans in the mouth. This can occur for a number of reasons, including:

Use of antibiotics or corticosteroids
Dry mouth
Poor oral hygiene
Weakened immune system

Risk Factors for Oral Thrush from Scuba Diving

The risk of getting oral thrush from a scuba diving mouthpiece is relatively low. However, there are certain factors that can increase the risk, including:

Poor oral hygiene: People who do not brush and floss their teeth regularly are more likely to have bacteria and fungi in their mouths, which can lead to oral thrush.
Dry mouth: Dry mouth can create a favorable environment for the growth of Candida albicans. Scuba diving can cause dry mouth because the mouthpiece can block the flow of saliva.
Weakened immune system: People with weakened immune systems are more susceptible to infections, including oral thrush.

Prevention of Oral Thrush from Scuba Diving

There are a number of things you can do to prevent oral thrush from scuba diving, including:

Practice good oral hygiene: Brush your teeth and floss regularly. Use a soft-bristled toothbrush and a toothpaste that contains fluoride.
Rinse your mouth with water after scuba diving: This will help to remove any bacteria or fungi that may have been transferred to your mouth from the mouthpiece.
Use a mouthwash that contains chlorhexidine: Chlorhexidine is an antiseptic that can help to kill bacteria and fungi.
Don’t share scuba diving mouthpieces: Sharing mouthpieces can increase the risk of spreading bacteria and fungi.
Get regular dental checkups: Your dentist can check for signs of oral thrush and recommend treatment if necessary.

Treatment of Oral Thrush

Oral thrush is typically treated with antifungal medications. These medications can be taken orally or applied directly to the affected area. In some cases, surgery may be necessary to remove severe cases of oral thrush.


Oral thrush is a common fungal infection that can affect the mouth, throat, and esophagus. While the risk of getting oral thrush from a scuba diving mouthpiece is relatively low, there are certain factors that can increase the risk. By following the prevention tips outlined above, you can help to reduce your risk of developing oral thrush from scuba diving.


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