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The signs/symptoms of polyonychia are very easy to detect: two or more nails growing on the same finger or toe. The nails can either be separate, small nails (micronychia) or one wide, almost complete nail, the digit affected could also be wider than normal
This nail averages 2–7 mm (0.079–0.276 in) in length. [3] The additional nail can be cut with a nail clipper. Its occurrence is considered common but underreported. [4] The entire nail of the small toe is usually short and wide, and both nails often share the same nail bed. [4]
In mammals, the growth rate of nails is related to the length of the terminal phalanges (outermost finger bones). Thus, in humans, the nail of the index finger grows faster than that of the little finger; and fingernails grow up to four times faster than toenails. [10] In humans, fingernails grow at an average rate of approx. 3.5 mm (0.14 in) a ...
A thin black line from the cuticle kept growing. It was the sign of rare, aggressive subungual melanoma. She got a 2nd opinion, advocated for herself.
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Topical administration of urea cream 40% under occlusion [16] or halcinonide cream 0.1% under occlusion for 5–6 days [17] has been used to treat onychomadesis in certain patients, although these therapies have not always proven successful. [6] It has been suggested to apply basic fibroblast growth factor externally to promote fresh nail plate ...
While Beau's lines are actual ridges and indentations in the nail plate, Muehrcke lines are areas of hypopigmentation without palpable ridges; they affect the underlying nail bed, and not the nail itself. Beau's lines should also be distinguished from Mees' lines of the fingernails, which are areas of discoloration in the nail plate.
While ingrown nails can occur in the nails of both the hands and the feet, they occur most commonly with the toenails (as opposed to fingernails). [citation needed] A common misconception is that the cause of an ingrown toenail is the nail growing into the paronychium, but it can also be caused by overgrown toe skin. [2]