Novel treatment using thioglycolic acid for pincer nails

Kikuzo Okada, Eijiro Okada

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


The authors developed a novel treatment using thioglycolic acid (TGA) to chemically soften pincer nails. The objective was to describe a new treatment method for pincer nails by applying TGA to soften the nail and then fix it in the correct position. A total of 104 patients (nine men and 95 women; mean age, 56 years) with 106 pincer nails underwent our treatment. A small hole was made on the markedly incurvated side of the pincer nail, and a super-elastic wire was inserted into the hole and bent backwards; 5% TGA was then applied for 6-7 h prior to reduction. Favorable reduction was achieved in 66% of patients within 1 day of the procedure, in 30% within 2-4 days and in 4% 5 days or more later. No patient required surgery. No post-procedure infection, rash, continuous pain or nail cut out was evident. In eight cases, recurrences of nail deformity were observed within the 1-year follow-up period. Our novel method, which consists of administrating TGA via a hole in the nail plate, is a useful treatment for pincer nails.

Original languageEnglish
Pages (from-to)996-999
Number of pages4
JournalJournal of Dermatology
Issue number12
Publication statusPublished - 2012 Dec
Externally publishedYes


  • nail deformity
  • non-invasive methods
  • pincer nail
  • thioglycolic acid
  • treatment

ASJC Scopus subject areas

  • Dermatology


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