Disclaimer: This is general health information only and is not a substitute for advice from your GP or healthcare professional.
1. What is pityriasis versicolor?
Pityriasis versicolor is a common fungal skin infection caused by yeast (Malassezia species). It leads to small, discolored patches on the skin that may be lighter or darker than the surrounding area. It often affects the chest, back, neck, and upper arms.
2. What causes pityriasis versicolor?
The condition occurs when the yeast that normally lives on the skin grows excessively. Factors that encourage growth include:
- Warm and humid weather
- Excessive sweating
- Oily skin
- Weakened immunity
- Hormonal changes or use of corticosteroids
It is not contagious and cannot be spread by casual contact.
3. What are the symptoms?
- Patches of lighter or darker skin, sometimes pink, brown, or reddish
- Mild scaling or flaking
- Occasional itching, especially in hot weather
- Discoloration may become more noticeable after sun exposure, as affected areas do not tan normally
4. How is pityriasis versicolor diagnosed?
Diagnosis is usually clinical, based on the appearance of the skin. Doctors may use:
- Wood’s lamp examination (UV light highlights fungal areas)
- Skin scraping examined under a microscope to confirm yeast
5. How is pityriasis versicolor treated?
Treatment involves antifungal therapy:
- Topical antifungal creams, lotions, or shampoos applied to affected areas
- Oral antifungal medication in widespread or recurrent cases
- Treatment may last 1–4 weeks depending on severity
6. Can it recur?
Yes. Pityriasis versicolor often recurs, especially in hot, humid conditions. Regular skin hygiene and occasional prophylactic antifungal washes may help prevent flare-ups.
7. Is it contagious?
No. Pityriasis versicolor is not contagious and does not spread through casual contact, clothing, or towels.
8. Can children get pityriasis versicolor?
Yes. It can occur at any age but is more common in adolescents and young adults, especially in hot or humid climates.
9. When should I see a doctor?
See a doctor if:
- Patches are widespread or persistent
- Over-the-counter antifungal treatments do not work
- You are unsure if the condition is pityriasis versicolor
- You notice secondary infection from scratching
10. Can pityriasis versicolor cause serious health problems?
No. It is not dangerous, but the discoloration can be cosmetically bothersome. With treatment, the infection resolves, though the skin color may take several months to return to normal.
