Which condition involves inflammation of the nail matrix?

Onychia refers specifically to the inflammation of the nail matrix, which is the tissue under the base of the nail that produces the nail itself. When this area becomes inflamed, it can lead to various symptoms such as redness, swelling, pain, and possibly pus formation. This condition can result from infections, irritants, or trauma to the nail area.

Understanding the distinction between onychia and other conditions is crucial. For instance, onychomycosis is a fungal infection of the nails, paronychia involves inflammation of the tissues surrounding the nail (but not specifically the matrix), and tinea pedis is a fungal infection affecting the feet, commonly known as athlete's foot. Each of these conditions has different causes, symptoms, and implications for treatment, which is important knowledge for nail technicians and healthcare providers.