Genital fungal infections
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Overview of Genital Fungal Infections: Epidemiology and Pathogens
Genital fungal infections are common in both men and women, though they are often underreported or misdiagnosed due to atypical symptoms and lack of awareness 12. In men, infections are relatively rare but can present with diverse and mild symptoms, making diagnosis challenging 12. In women, vulvovaginal candidiasis (VVC) is one of the most frequent causes of infectious vaginitis, with most women experiencing at least one episode in their lifetime 710.
The most common pathogens responsible for genital fungal infections are Candida albicans and, in men, Trichophyton rubrum 1789+1 MORE. Other non-albicans Candida species and fungi such as Malassezia and Conidiobolus can also be present, especially in cases of bacterial vaginosis (BV) or altered genital microbiota .
Clinical Features and Diagnosis of Genital Fungal Infections
Male Genital Fungal Infections
In men, genital fungal infections typically affect the scrotum and penis, with lesions often appearing as erythematous, dry, scaly patches that may lack clear borders . Trichophyton rubrum is the leading cause, followed by Candida albicans . Diagnosis relies on a combination of medical history, clinical examination, and laboratory confirmation through microscopy and culture, as clinical presentation alone is often insufficient 12.
Female Genital Fungal Infections
In women, VVC is characterized by itching, discharge, and irritation, but symptoms can overlap with other genital infections, making laboratory confirmation essential 7810. Candida albicans is the predominant pathogen, but non-albicans species are also implicated, particularly in recurrent or treatment-resistant cases 78910. Diagnosis should be confirmed by culture or molecular methods, as clinical signs alone are not reliable 810.
Risk Factors and Predisposing Conditions
Several factors increase the risk of genital fungal infections. In men, predisposing factors include concurrent fungal infections elsewhere on the body (especially tinea cruris), use of corticosteroids, and high moisture environments . In women, risk factors include antibiotic use, hormonal changes, diabetes, and use of oral contraceptives 67810. Treatment with sodium-glucose cotransporter 2 (SGLT2) inhibitors for diabetes is associated with a higher risk of genital fungal infections, particularly in women and those with a prior history of such infections .
Sexual transmission of Candida is possible, especially with frequent anogenital or orogenital contact, and may contribute to recurrent infections . Circumcision has been noted to reduce the risk of male genital fungal infections .
Microbiome Interactions and Immune Response
The genital mycobiome is diverse, with Candida species dominating in healthy women, but shifts in bacterial communities (such as during BV) can alter fungal abundance 459. Antibiotic treatment for BV can lead to a temporary increase in vaginal fungi, mainly Candida albicans, which is associated with increased genital inflammation and higher levels of proinflammatory cytokines 49. Dysbiosis, or imbalance in the genital microbiota, can promote overgrowth of pathogenic fungi and increase susceptibility to infection 59.
Prevention and Management
Timely and accurate diagnosis is crucial for effective management of genital fungal infections 1210. Treatment typically involves antifungal medications, and addressing underlying risk factors such as moisture, diabetes, or inappropriate corticosteroid use is important for prevention 1610. In recurrent cases, evaluation of sexual practices and partner treatment may be necessary .
Conclusion
Genital fungal infections are common and can affect both men and women, with Candida albicans being the most frequent pathogen. Diagnosis should be confirmed by laboratory methods due to the nonspecific nature of symptoms. Risk factors include antibiotic use, diabetes, corticosteroid application, and sexual behaviors. Understanding the interplay between the genital microbiome and fungal pathogens is essential for improving prevention and treatment strategies 1245+5 MORE.
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