Tinea Cruris

Tinea cruris, also known as jock itch, is a fungal infection of the skin that affects the groin area, thighs, and buttocks.

Causes and Risk Factors

• Tinea cruris is caused by a type of fungus called dermatophytes, which thrive in warm, moist environments.
• The most common fungi that cause tinea cruris are Trichophyton rubrum, Epidermophyton floccosum, and Microsporum canis.
• Risk factors for developing tinea cruris include:
• Excessive sweating
• Tight clothing
• Sharing personal care items
• Walking barefoot in public areas
• Weakened immune system
• Obesity

Symptoms

• Red, itchy, and scaly rash on the groin, thighs, and buttocks
• Burning sensation in the affected area
• Cracking or fissuring of the skin
• Discharge or pus in severe cases

Diagnosis

Tinea cruris is typically diagnosed based on a physical examination and medical history.

• A healthcare professional may perform a potassium hydroxide (KOH) test to examine the skin scrapings under a microscope.
• A fungal culture may also be performed to confirm the diagnosis.

Treatment

Treatment for tinea cruris typically involves topical antifungal medications, such as:

• Clotrimazole (Lotrimin)
• Miconazole (Micatin)
• Terbinafine (Lamisil)

In severe cases, oral antifungal medications may be prescribed.

Prevention

• Keep the groin area clean and dry
• Wear loose-fitting clothing
• Avoid sharing personal care items
• Wear sandals or shoes in public areas
• Treat any underlying conditions that may be contributing to excessive sweating

Complications

If left untreated, tinea cruris can lead to complications such as:

• Bacterial infections
• Fungal infections in other parts of the body
• Permanent scarring or discoloration of the skin