Toenail Fungus (Onychomycosis): Symptoms, Causes & Treatment #3411347 (License: Personal Use)

This image shows a classic presentation of distal lateral subungual onychomycosis (DLSO), the most common form of fungal nail infection, characterized by yellow-brown discoloration, hyperkeratosis, and onycholysis of the great toenail. The surrounding skin appears normal, and no signs of cellulitis or paronychia are present, suggesting a chronic, localized infection likely caused by dermatophytes such as Trichophyton rubrum.

Used in dermatology, podiatry, and telehealth educational content to illustrate fungal nail disease for patient education, differential diagnosis, or before/after treatment comparisons. Matches user intent seeking visual confirmation of symptoms or understanding clinical presentations.