Such disorders usually affect most of the patient's nails. However, in some cases the thumb seems to be more or less unaffected. [4] Although photo-onycholysis ... and nail bed and subsequent ...

While dactylitis refers to nonspecific inflammation of a finger or toe, blistering distal dactylitis specifically refers to a periungual infection, most often caused by group A hemolytic streptococci.

Injuries, certain medications, infections, skin conditions, and endocrine disorders ... on one or more nails. Repeated ...