Skip Navigation

Search Knowledgebase

Crusted (Norwegian) Scabies

Crusted (Norwegian) scabies is a rare, severe form of scabies. It is extremely contagious because of the large number of mites found in and on the skin.

This form of scabies may occur in:

  • People who have certain nutritional disorders, infectious diseases, leukemia, or weakened immune systems (such as people who have AIDS). Testing for HIV infection may be appropriate for people who have this type of scabies.
  • People who have mental or nervous system disorders that mask the itching sensation. When scabies itching goes undetected, the infestation can become severe.

Characteristics of this form of scabies include:

  • Scaly, crusted sores on the hands, feet, scalp, face, torso, and pressure-bearing areas such as the elbows. Facial skin may flake off, and significant hair loss can result.
  • Mild itching despite the heavy infestation of mites.
  • Slow response to treatment compared with other forms of scabies. When multiple treatments are ineffective, oral treatment with the medicine ivermectin may be used.
By Healthwise Staff
Primary Medical Reviewer Adam Husney, MD - Family Medicine
Specialist Medical Reviewer John Pope, MD - Pediatrics
Last Revised January 23, 2013

Last Revised: January 23, 2013

This information does not replace the advice of a doctor. Healthwise, Incorporated disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. How this information was developed to help you make better health decisions.

© 1995-2013 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.