fungal infection

Overview and Pathophysiology Onychomycosis, or tinea unguium, is a chronic fungal infection of the nail unit characterized by significant morbidity, including pain, secondary bacterial infection, and psychosocial distress. While often considered cosmetic, it can serve as a reservoir for dermatophyte transmission (e.g., Tinea pedis) and may exacerbate underlying systemic conditions. The etiology is primarily dermatophytic,…