Forces of Nature Nail Fungus: What to Know

Fungal nail infection may cause yellow, white, or brown discoloration, crumbly material beneath the nail, thickening, lifting, or altered shape. These changes can resemble injury, psoriasis, or other nail disorders, so appearance alone cannot confirm fungus. Athlete's foot can coexist and may act as a source of fungal spread between skin and nails. A clinician may inspect the nail and test a sample before prescribing treatment.

Keep feet clean and dry, change damp socks, and allow footwear to air. Trim nails carefully without sharing clippers, files, or towels. Treat coexisting athlete's foot if advised, and avoid covering a changing nail with polish until it has been assessed. Options can include topical antifungal treatment, oral antifungal treatment, laser treatment, or nail surgery in selected situations. The choice depends on which nails are involved, the extent of change, medical history, and possible medicine interactions.

Arrange an appointment when a nail becomes newly discolored, thick, painful, lifted, or difficult to trim. Seek prompt assessment for spreading redness, warmth, drainage, severe pain, or fever. People with diabetes, reduced circulation, reduced sensation, or a weakened immune system should seek advice early because foot problems may need closer monitoring.

Ask whether the nail needs testing, which treatment fits its location, how long improvement may take as the nail grows, and how to prevent reinfection. Share your medicines and liver history before oral treatment is considered.