![What is Onychauxis? What is Onychauxis?](https://www.epainassist.com/assets/skin-problems/2017/what-is-onychauxis.jpg)
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Onychauxis is the abnormal thickening or overgrowth of nails; however, the affected nail need not always look abnormal. The nail might appear normal even to the doctor upon inspection. Sometimes, Onychauxis occurs as a result of natural ageing process and can be harmless and other times, Onychauxis is considered as a symptom of an underlying systemic disease, which has caused deformation in the nails. Know the 7 causes of Onychauxis, its symptoms, treatment and prevention.