Is your tan uneven and do you notice small white or reddish spots on your skin? Various skin changes can appear during the summer, some of which become more noticeable after sun exposure. One possible cause is pityriasis versicolor, a superficial skin infection associated with the overgrowth of certain yeasts normally present on the skin.
It’s important to remember, however, that not all white or red spots have the same origin. Therefore, especially if the lesions persist, increase in size, or present other symptoms, it’s advisable to consult a doctor or dermatologist for a proper diagnosis.
White spots on the skin after sun exposure: what could be the causes?
The skin normally hosts a group of microorganisms that make up the so-called skin microbiome. Among these may also include yeasts of the Malassezia genus , which in certain conditions can proliferate excessively.
One of the conditions associated with this proliferation is pityriasis versicolor, also known as tinea versicolor. It can manifest as small, lighter, pinkish, or brownish spots, often located on the trunk, shoulders, neck, or upper arms.
The spots may become more noticeable after sun exposure because the affected areas may tan differently than the surrounding skin. In some cases, mild scaling may also appear, while itching may be absent or mild.
Heat and humidity can encourage yeast growth, which is why the problem may become more noticeable during the summer months.
However, white spots are not always due to a fungal infection: before choosing a treatment, it is important to understand their actual origin.
