How do you get jock itch?

If you are affected by tinea cruris, you first need to pay attention to understand the cause. Commonly, it is caused by some bacterial infection, such as Trichophyton rubrum and Trichophyton mentagrophytes, which may be pathogenic bacteria. Sometimes a lack of vitamin B2 may also cause these symptoms.

1. Pathological causes

The main pathogens of tinea cruris are Trichophyton rubrum and Trichophyton mentagrophytes. Epidermophyton floccosum was also a common pathogen of tinea cruris in the past, but has become less common in recent years. Some other pathogens that can cause tinea corporis can also be the pathogens of tinea cruris, but they account for a small proportion. Traditional Chinese medicine believes that prolonged sweating is caused by exogenous wind evil.

2. Scrotal eczema and dermatitis

The skin lesions are mainly lichenified or eczematous, with unclear edges, no tendency for the center to heal on its own, significant itching, and the development of the skin lesions is not closely related to the season. It should be noted that tinea cruris is prone to eczema-like changes after intense scratching, hot water washing or use of highly irritating topical medications. The course of the disease is protracted and recurrent, making it difficult to treat.

3. Vitamin B2 deficiency

It is a syndrome of skin, scrotum and oral cavity caused by vitamin B2 (riboflavin) deficiency in the body. The main manifestation is scrotitis, which begins with diffuse pink patches on the scrotum with clear boundaries and slightly raised edges. The patches are covered with grayish white scales or thick brownish black crusts, and the scales are negative for bacteria. Glossitis and angular cheilitis are combined and tend to occur collectively in the same catering unit.

4. Erythrasma

It is caused by microscopic rod-shaped bacteria that live in the pubic region, thigh region and axilla region. When the pubic and femoral areas are invaded, symmetrical yellowish or reddish brown scaly patches often occur near the scrotum, or the surface becomes wrinkled paper-like, with clear boundaries, no papules, blisters or scabs, no tendency to heal on its own in the central part, low infectiousness, and no subjective symptoms. More common in young men. The lesions fluoresce coral-colored under filtered ultraviolet light.