Nail pitting: the meaning & causes of fingernail pits!
August 27, 2009
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What is nail pitting? Nail pits are small, round depressions on the surface of the nail plate. They are usually due to disease in the proximal matrix, or sometimes, the proximal nail fold. And the arrangement of the depressions in the surface of the nail is presumably due to the extent and location of the disease in the nail matrix. Random pits in the nail can be seen as an idiopatic finding. When the pitting is uniformly distributed, giving the entire nail plate a roughned appearance, it is called trachyonychia. Treatment of nail pits should be directed to the matrix of the nail. What causes nail pitting? Nail pits are usually the result of: • psoriasis (10-50% of patients have nail pits); MORE ABOUT THIS FINGERNAIL DISORDER: |
PHOTO – Nail piting in fingernails:
• Common diseases in the fingernail & toe nail!
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• Fingernails are the barometer of your health!
Anatomy of your fingernail: the nail matrix!
August 14, 2009
The matrix is an ‘invisible’ part of the fingernail – but nevertheless it’s the most important aspect of the nail because nails grow form the matrix! The process of a growing nail can be described as follows: Fingernails are composed largely of keratin – a hardened protein which is also present in your skin and hair! As new cells grow in the nail matrix, the older cells are ‘pushed out’, compacted, and take on the familiar flattened, hardened form of the fingernail. In An Atlas of DISEASES OF THE NAIL the ‘matrix’ is described as follows:
The proximal portion of the matrix lies beneath the nail folds and the distal curved edge can usually be seen through the nail plate as the white lunula. The proximal matrix forms the superfiscial portion of the nail plate and the distal matrix makes the undersurface of the nail plate.” NOTICE: The so-called ‘root’ of the nail is also known as the germinal matrix.
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Anatomy of your fingernail: the lunula or lunulae!
August 12, 2009
The lunula, or lunulae (a.k.a. the ‘nail moon’), is the crescent-shaped whitish area of the bed of a fingernail (or toenail). The lunula can also be described as the visible part of the nail matrix – which is the ‘root’ of the nail. The lunula or the white ‘half moon’ at the base or proximal end of the fingernail is particularly smooth, flat and shiny. The whiteness of the lunula is still a matter of controversy but its absence – especialy when the lunula is not present in the first finger (thumb) – could be described as notable and important. In certain chromosome abnormalities the lunula is absent, i.e., monosomia 4 and the lunulae may be diminished in trisomy 21 (= Down syndrome). A technical description of the ‘lunuala’ from An Atlas of DISEASES OF THE NAIL:
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