• • SEPTEMBER 6, 2019

  Nail Signs due to abnormal nail matrix function -Nail Pitting 指甲凹痕/凹洞

  Nail Signs due to abnormal nail matrix function -Nail Pitting 指甲凹痕/凹洞

  Nail Pitting describes the presence of punctate depressions of the nail plate surface. Pits are due to foci of abnormal keratinization of the proximal nail matrix. These pits emerge from under the cuticle and grow out with the nail. Many other cutaneous diseases may cause pitting (eg., psoriasis, eczema, fungal infections, and alopecia areata), or it may occur as an isolated finding in a normal variation.

  

  指甲凹痕/凹洞Nail Pitting, 是指像用冰镐在指甲上凿出的小坑，是由于近端指甲基质的不正常角化引起。指甲凹痕大部分原因是皮肤疾病造成，如银屑病，湿疹，真菌感染，或斑秃；这些凹洞也有能是正常变异中孤立的发现，简单而言，也可能是正常现象。

  Reference:

   

  1. Antonella Tosti, Bianca Maria Piraccini. In: Jean Bolognia Julie Schaffer Lorenzo Cerroni, editors. Dermatology: 2-Volume Set 4th Edition. Elsevier; 2017. p1204-1205.
  2. Zaias N. Psoriasis of the nail. A clinicopathologic study. Arch Dermatol 1969;99:567–79.
  3. Brazzelli V, Carugno A, Alborghetti A, et al. Prevalence, severity and clinical features of psoriasis in fingernails and toenails in adult patients: Italian experience. J Eur Acad Dermatol Venereol 2012;26:1354–9

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By Tony Tang Yuqi

Physician Tony Tang Yuqi leads Tangs Clinical TCM with a wealth of knowledge and experience. Holding esteemed qualifications such as an MSc in Clinical Research from Edinburgh and an MBA from Singapore, alongside a Diploma in Traditional Chinese Medicine and registration as a TCM Physician in Singapore. He believes in a compassionate and holistic approach to healthcare, especially when it comes to TCM treatment for eczema, providing comprehensive patient care.