Disclaimer: This is general health information only and is not a substitute for advice from your GP or healthcare professional.
1. What is tinea cruris?
Tinea cruris, commonly known as jock itch, is a fungal infection that affects the groin, inner thighs, and buttocks. It causes red, itchy, and sometimes scaly patches that can spread if untreated.
2. What causes tinea cruris?
It is caused by dermatophyte fungi, which thrive in warm, moist areas of the body. Risk factors include:
- Excessive sweating
- Tight or non-breathable clothing
- Obesity
- Poor hygiene
- Sharing towels or clothing with an infected person
3. What are the symptoms?
- Red, itchy patches in the groin or inner thighs
- Raised, scaly edges with central clearing
- Burning or discomfort, especially when sweating
- Mild spread to the buttocks or lower abdomen in severe cases
4. How is tinea cruris diagnosed?
Diagnosis is usually clinical, based on appearance and history. A skin scraping examined under a microscope or fungal culture can confirm the infection if needed.
5. How is tinea cruris treated?
Treatment involves:
- Topical antifungal creams or powders applied to affected areas for 2–4 weeks
- Oral antifungal medication for widespread or resistant cases
- Keeping the area clean and dry
- Wearing loose, breathable clothing to reduce moisture
6. Can tinea cruris go away on its own?
Mild cases may improve with good hygiene, but most infections require antifungal treatment to fully resolve and prevent recurrence.
7. Is tinea cruris contagious?
Yes, it can spread through direct skin contact or contaminated towels, clothing, or bedding. Practicing good hygiene helps prevent transmission.
8. Can children get tinea cruris?
It is less common in children but can occur, especially in adolescents who are active, sweat heavily, or wear tight clothing.
9. When should I see a doctor?
See a doctor if:
- The rash does not improve after topical treatment
- The infection spreads rapidly or recurs frequently
- There are signs of bacterial infection (pus, swelling, pain)
- You are unsure if it is a fungal infection
10. Can tinea cruris cause serious health problems?
No, it is not dangerous, but it can be uncomfortable and irritating. Untreated infections may worsen or spread to other areas, and scratching can lead to secondary bacterial infections.
