However, if the thick toenails are due to fungal infection, psoriasis, or infections, they improve only by treating the underlying condition. What autoimmune disease causes thick toenails?

A systematic review revealed that patients with psoriasis have a significantly higher prevalence of onychomycosis than those without psoriasis.

Fungal nail infections may seem embarrassing, but they’re actually very common. They affect around 10 per cent of people ...

Why are my toenails yellow? You might not pay much ... "Patients with nail psoriasis often have thick nails, with the lifting of the nail, and little indentations called pits," says Dr. Lipner.

Thickened and discoloured toenails can be caused by a variety of issues, from ill-fitting shoes or trauma from stubbing your toe, to ageing and psoriasis (a chronic skin condition). Often, though, ...