What skin disease is characterized by pitting and dark spots on the nails?

Psoriasis is a chronic skin condition that can affect the nails, and it is characterized by distinctive symptoms such as pitting, ridges, and discoloration, which may appear as dark spots. In the case of nail psoriasis, the nails can develop small, dimple-like depressions on their surface, known as pitting. Additionally, there may be changes in nail texture and thickness, and some individuals may experience separation of the nail from the nail bed (onycholysis).

The presence of dark spots on the nails can be associated with nail psoriasis, as the overall condition can impact nail appearance and health significantly. Understanding psoriasis and its effects on the nails is crucial for effective diagnosis and treatment in a nail care setting.