Thick, yellow, and brittle toenails are often caused by fungal infections like onychomycosis, which thrives in moist environments and on keratin. Risk factors include diabetes, poor circulation, and ...

Nail pitting may appear as depressions or dimples in your fingernails or toenails. It’s common in people with psoriatic arthritis. Oral and topical medications and lifestyle changes can help treat ...

Yellow nail syndrome (YNS) is a rare medical condition characterized by a distinct triad of symptoms: yellow or discolored ...