Oral candida infections affect up to 48% of people with HIV and over 90% of people with AIDS.
If you have HIV and leave oral candida untreated, it can become a serious problem, lasting for months or years.
As well as oral thrush, people with HIV can develop acute atrophic oral candidiasis, another type of oral candida (see above). Sometimes this infection can develop after you have oral thrush.
People with AIDS can also develop thrush infections deeper within their bodies, for example, in their windpipe, throat or lungs.