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A nail disease or onychosis is a disease or deformity of the nail.Although the nail is a structure produced by the skin and is a skin appendage, nail diseases have a distinct classification as they have their own signs and symptoms which may relate to other medical conditions.
Also known as "true" leukonychia, this is the most common form of leukonychia, in which small white spots appear on the nails. Picking and biting of the nails are a prominent cause in young children and nail biters. Besides parakeratosis, air that is trapped between the cells may also cause this appearance. [5] It is also caused by trauma.
Psoriatic nails are characterized by a translucent discolouration in the nail bed that resembles a drop of oil beneath the nail plate. [2] Early signs that may accompany the "oil drop" include thickening of the lateral edges of the nail bed with or without resultant flattening or concavity of the nail; separation of the nail from the underlying nail bed, often in thin streaks from the tip-edge ...
Nail pitting often accompanies distal interphalangeal joint involvement and may be essential in differentiating psoriatic arthritis from other diseases. [6] Psoriasis can also cause damage to the nails, such as pitting or separation from the nail bed, [ 5 ] onycholysis , hyperkeratosis under the nails, and horizontal ridging.
Pale white nails If your fingernail beds are looking a little ghostly, you may have anemia due to low levels of iron. This could lead to low levels of oxygen, which causes the skin and tissues to ...
Parakeratosis pustulosa is most commonly seen in children as an eczematoid eruption near the free margin of the nail that extends to the dorsal nail fold. Under the free margin of the nail, hyperkeratosis causes the nail plate to pull up and results in a deformity that resembles a gaping toecap separated from the sole at the seam. Pitting and ...