title: Toe nail disease secondary to poorly fitting shoes or abnormal biomechanics.
mesh_terms: D001696:Biomechanical Phenomena; D006801:Humans; D007642:Keratosis / Q000209:etiology; D009260:Nail Diseases / Q000209:etiology*; D009263:Nails, Ingrown / Q000209:etiology; D011693:Purpura / Q000209:etiology; D012775:Shoes / Q000009:adverse effects*; D014034:Toes