Fungal Skin Infections
Also known as: Tinea, Dermatophytosis, Mycotic infections, Ringworm
Fungal skin infections are common and caused by dermatophytes, yeasts, or non-dermatophyte molds affecting skin, hair, nails.
Signs & Symptoms
- Red, itchy patches
- Scaling and flaking
- Ring-shaped lesions
- Nail discoloration
- Crumbling nails
- Maceration (excessive moisture)
Causes
- Dermatophyte fungi (Trichophyton, Microsporum, Epidermophyton)
- Candida yeasts
- Non-dermatophyte molds
- Environmental fungi
- Person-to-person spread
Risk Factors
- Warm, moist environments
- Poor hygiene
- Compromised immune system
- Tight clothing
- Shared facilities
- Diabetes
- Obesity
When to See a Doctor
See a dermatologist if fungal infection covers large area, involves nails, doesn't respond to topical treatment, or you have symptoms of systemic spread.
Treatment Options
Treatment options vary by individual. Consult a dermatologist for a personalised plan.
- Topical antifungals
- Oral antifungal medications
- Combination therapy
- Nail debridement
- Systemic therapy for extensive disease
Understanding Fungal Skin Infections
Fungal skin infections are among the most common dermatological conditions worldwide, affecting approximately 20-25% of the population at some time.
Types and Classifications
Dermatophytes (most common):
- Trichophyton mentagrophytes
- Trichophyton rubrum
- Microsporum canis
- Epidermophyton floccosum
Yeasts:
- Candida albicans
- Malassezia furfur
Non-dermatophyte molds:
- Aspergillus
- Scopulariopsis
Clinical Presentations by Location
Tinea Pedis (Athlete’s Foot): Scaling, maceration between toes, itching
Tinea Cruris (Jock Itch): Red patches in groin area, itching
Tinea Corporis (Ringworm): Ring-shaped plaques with central clearing
Tinea Capitis (Scalp Ringworm): Patchy hair loss, scaling, fungi on hair shafts
Tinea Unguium (Nail Fungus): Discoloration, thickening, crumbling of nails
Tinea Versicolor: Hypo or hyerpigmented patches from Malassezia
Risk Factors and Triggers
- Warm, moist environments (sweating, humidity)
- Immunocompromise (HIV, diabetes, cancer treatment)
- Poor personal hygiene
- Systemic corticosteroid use
- Disrupted skin barrier
- Tight, occlusive clothing
Transmission Routes
- Direct skin-to-skin contact
- Fomites (contaminated surfaces, shared towels)
- Zoonotic transmission (infected animals)
- Environmental spores
Diagnostic Approach
- Clinical Examination: Characteristic appearance and distribution
- KOH Preparation: Confirms fungal element presence
- Culture: Identifies specific organism
- Wood’s Lamp: Limited use; some fungi fluoresce
”When to See a Doctor”
Fungal infections causing significant symptoms, covering large body area, involving nails, or unresponsive to self-treatment require professional care.
Prevention Strategies
- Keep areas dry
- Wear breathable clothing
- Use antifungal powder in high-risk areas
- Avoid shared shower/changing areas
- Don’t share personal items
- Treat infected pets promptly
- Maintain good hygiene
Visit Dr. Dr. Sanjay Agrawal for professional fungal infection diagnosis and treatment.
Have this condition?
Call the clinic or visit Dr. Sanjay Agrawal directly for a proper diagnosis and personalised treatment plan.