Oral thrush happens when a yeast infection develops inside your mouth. Oral thrush most often occurs in infants and toddlers. It causes white or yellowish bumps to form on the inner cheeks and tongue. Those bumps usually go away with treatment. The infection is typically mild and rarely causes serious problems. But in people with weakened immune systems, it can spread to other parts of the body and cause potentially serious complications. In its early stages, oral thrush may not cause any symptoms.

Check if it's oral thrush
Conditions
Back to Health A to Z. Oral thrush is usually harmless. It's common in babies and older people with dentures. It can be easily treated with medicines bought from a pharmacy. Babies can pass oral thrush on through breastfeeding. This can cause nipple thrush in mothers. Look at other causes of a white or sore tongue. Oral thrush can be easily treated with a mouth gel bought from a pharmacy.
Latest news
Candidiasis is an infection caused by a yeast a type of fungus called Candida. Candida normally lives on the skin and inside the body, in places such as the mouth, throat, gut, and vagina, without causing any problems. Candidiasis in the mouth and throat is also called thrush or oropharyngeal candidiasis. Candidiasis in the esophagus the tube that connects the throat to the stomach is called esophageal candidiasis or Candida esophagitis. Symptoms of candidiasis in the esophagus usually include pain when swallowing and difficulty swallowing. Contact your healthcare provider if you have symptoms that you think are related to candidiasis in the mouth, throat, or esophagus.
Oral thrush is a fungal infection of the mouth. It is not contagious and is usually successfully treated with antifungal medication. It is also called oral candidosis or candiasis because it is caused by a group of yeasts called Candida. Speak to your GP if you develop symptoms of oral thrush.