Other Names for this Disease
- Coarse, dry, lusterless hair which breaks off easily
- Twisted hair
See Disclaimer regarding information on this site. Some links on this page may take you to organizations outside of the National Institutes of Health.
 Some cases are genetic while others are acquired. In the inherited form, symptoms tend to be present from early childhood. It can occur alone or in association with ectodermal dysplasias, Menke disease, Bjornstand syndrome, or Bazex syndrome. Acquired cases of pili torti may be associated with anorexia nervosa, malnutrition, oral retinoid treatment, or inflammatory scalp conditions (e.g., cutaneous lupus erythematousus). Click here to visit DermAtlas and view an image of a child with pili torti.Pili torti is a rare hair condition characterized by fragile hair. In pili torti hair has a flattened shaft with clusters of narrow twists at irregular intervals.
Last updated: 2/23/2011
- Defects of the hair shaft. DermNet NZ. 2010; http://www.dermnetnz.org/hair-nails-sweat/hair-shaft-defects.html. Accessed 2/23/2011.
- DermNetNZ provides information on defects of the hair shaft, which includes information on pili torti. DermNetNZ is an online resource about skin diseases developed by the New Zealand Dermatological Society Incorporated.
- Online Mendelian Inheritance in Man (OMIM) is a catalog of human genes and genetic disorders. Each entry has a summary of related medical articles. It is meant for health care professionals and researchers. OMIM is maintained by Johns Hopkins University School of Medicine.
- Orphanet is a European reference portal for information on rare diseases and orphan drugs. Access to this database is free of charge.
- PubMed is a searchable database of medical literature and lists journal articles that discuss Pili torti. Click on the link to view a sample search on this topic.
- Gelles LN. Picture of the month. Pili torti. Arch Pediatr Adolesc Med. 1999 Jun;153:647-648.