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Melanonychia is a black or brown pigmentation of a nail, and may be present as a normal finding on many digits in Afro-Caribbeans, as a result of trauma, systemic disease, or medications, or as a postinflammatory event from such localized events as lichen planus or fixed drug eruption.
The melanoma appears as a brown-black discoloration of the nail bed, with Verywell Health reporting it’s often misdiagnosed as a fungal infection. ... Hematomas typically grow out over time.
Anatomy of the basic parts of a human nail.A. Nail plate; B. lunula; C. root; D. sinus; E. matrix; F. nail bed; G. eponychium; H. free margin. Onychia is an inflammation of the nail folds (surrounding tissue of the nail plate) of the nail with formation of pus and shedding of the nail.
Nail discolouration may last some months. [4] The nail plate may also become thicker and more brittle as a result of the injury (onychochauxis). The deformed nail plate will gradually grow out and be replaced by a new, normal-appearing one in several months' time. Infrequently, the nail may become painful and require surgical drainage. [5]
A toenail takes a year or longer to grow out, Del Campo notes. So even if a treatment is knocking out the fungus, you'll probably have to wait patiently to see a completely healthy-looking nail.
Onychomycosis, also known as tinea unguium, [4] is a fungal infection of the nail. [2] Symptoms may include white or yellow nail discoloration, thickening of the nail, and separation of the nail from the nail bed. [2]
Nail bracing is more conservative than surgery, but less widely used. Nail braces work by gently lifting the sides of the toenail and eventually retraining the nail to grow to a flatter shape over time. The total time needed for the nail to be reshaped is one full nail growth or about 18 months. [12]
Green nail syndrome is an infection that can develop in individuals whose hands are frequently submerged in water resulting in discolouration of the nails from shades of green to black. [ 3 ] [ 4 ] It may also occur as transverse green stripes that are ascribed to intermittent episodes of infection. [ 3 ]