Thick Toenails: Causes and What Helps
When it comes to thick toenails causes, the most common one is a fungal infection that slowly thickens the nail from underneath — but repeated pressure from tight shoes, an old injury to the nail, and simply getting older can all thicken toenails too. Less often, thick nails come with psoriasis or poor foot circulation. If a thick nail is painful, smells, or worsens despite basic care, get it checked rather than just filing it down.