Indian Journal of Dermatology
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Year : 2022  |  Volume : 67  |  Issue : 6  |  Page : 835

Postsurgical transient hypertrichosis around healing wound after total knee arthroplasty: A case report

1 Institute of Dermatology, Department of Medical Services, Ministry of Public Health, Bangkok, Thailand
2 Institute of Dermatology, Department of Medical Services, Ministry of Public Health, Bangkok; Master of Science Program in Dermatology and Dermatosurgery, Rangsit University, Pathum Thani, Thailand

Correspondence Address:
Chinmanat Lekhavat
Institute of Dermatology, 420/7 Rajvithi Road, Rajthevee, Bangkok 10400
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ijd.ijd_661_21

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Hypertrichosis is a condition characterized by the presence of an abnormal increase in the number of hairs and either occurs in a localized pattern or a generalized pattern. Localized hypertrichosis around a healing wound is an infrequent postsurgical complication. A 60-year-old Asian man came for a consultation because of an increase in the amount of hair around his 2-month postsurgical wound of right knee arthroplasty. Neither history of topical medications nor systemic medications, which can cause hypertrichosis, were presented. A diagnosis of postsurgical hypertrichosis was made clinically without any laboratory investigations. The patient was reassured that the medication was not necessary and he was appointed for follow-ups. Within the next 4 months, the hypertrichosis resolved spontaneously without any treatment. The case demonstrates the correlation between wound healing and hair morphogenesis, especially as both processes involve some similar growth factors and signaling molecules. Further studies might lead to discovery and better management of hair disorders.

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