Oral thrush is a fungal infection of the mouth. It is usually successfully treated with antifungal medication. You should speak to your GP if you develop symptoms of oral thrush. Oral thrush is caused by a group of yeasts called Candida. Most people already have spores of the fungi in their mouth. They don't usually cause any problems, but can lead to oral thrush if they multiply. Oral thrush is not
usually considered an infection that you get from other people. Symptoms of oral thrush can include: In some cases, the symptoms of oral thrush can make eating and drinking difficult. If you have oral thrush your mouth is red inside and you have white patches. When to see your GPSpeak to your pharmacist if you develop symptoms of oral thrush. Some treatments are available that can help. If left untreated, the symptoms will often persist and your mouth will continue to feel uncomfortable. If your symptoms continue - see your GP. In severe cases that are left untreated, there is also a risk of the infection spreading further into your body. This can be serious. Your GP will usually be able to diagnose oral thrush by examining your mouth. Sometimes they may also recommend blood tests. The tests will look for certain conditions linked to oral thrush, such as diabetes and nutritional deficiencies. Causes of oral thrushThere are a number of reasons why oral thrush may happen, including:
Babies, young children and elderly people are at a particularly high risk of developing oral thrush People with conditions that can affect the immune systems or normal barriers to infection can increase the risk of developing oral thrush. The conditions include:
Treatments for oral thrushOral thrush can usually be successfully treated with antifungal medicines. These usually come in the form of gels or liquid that you apply directly inside your mouth (topical medication). Tablets or capsules are also sometimes used. You can ask your pharmacist for advice. If antibiotics or corticosteroids are thought to be causing your oral thrush, the medicine – or the way it is delivered – may need to be changed or the dosage reduced. Speak to your pharmacist or GP if you think this is an issue for you. Preventing oral thrushThere are a number of things you can do to reduce your chances of developing oral thrush, including:
If you have a condition or are receiving treatment that could put you at a high risk of developing oral thrush, your doctor may recommend taking a course of antifungal medication. This is to prevent oral thrush happening. Other types of thrushThrush can also affect the vagina, skin and the head of the penis (glans). For more information about other types of thrush, see:
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The information on this page has been adapted from original content from the NHS website. For further information see terms and conditions. Who is at highest risk for oral candidiasis?People who are at higher risk for getting candidiasis in the mouth and throat include babies, especially those younger than 1 month of age, and people with at least one of these factors: Wear dentures. Have diabetes. Have cancer.
Which of the following patients has increased risk of candidiasis?Groups at risk for invasive candidiasis
Have a weakened immune system (for example, people on cancer chemotherapy, people who have had an organ transplant, and people with low white blood cell counts)
What is the most common cause of oral candidiasis?What causes oral thrush?. taking a course of antibiotics, particularly over a long period or at a high dose.. taking inhaled corticosteroid medication for asthma.. wearing dentures (false teeth), particularly if they don't fit properly.. having poor oral hygiene.. What underlying conditions cause oral thrush?What causes thrush? Most people have small amounts of the Candida fungus in the mouth, digestive tract and skin. They are normally kept in check by other bacteria and microorganisms in the body. When illnesses, stress, or medications disturb this balance, the fungus grows out of control and causes thrush.
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