honeypot link
skip to main content
Professional edition active
open-lang-selector
  • follow us on facebook
MSDMerck ManualProfessional Version
MEDICAL TOPICSRESOURCESDRUG INFOCOMMENTARYPROCEDURESQUIZZESABOUT US
MEDICAL TOPICSRESOURCESDRUG INFOCOMMENTARYPROCEDURESQUIZZES
Search icon
  1. Professional/
  2. Dermatologic Disorders/
  3. Hair Disorders/
  • Resource Icon
  • Home
  • About link test
Hair Disorders
  • Alopecia
    • Pathophysiology
      • Growth cycle
      • Classification
    • Etiology
      • Etiology references
    • Evaluation
      • History
      • Physical examination
      • Red flags
      • Interpretation of findings
      • Testing
    • Treatment
      • Androgenetic alopecia
      • Hair loss due to other causes
      • Treatment references
    • Key Points
  • Alopecia Areata
    • Diagnosis
    • Treatment
      • Treatment references
    • Prognosis
      • Prognosis reference
  • Hirsutism and Hypertrichosis
    • Pathophysiology
    • Etiology
    • Evaluation
      • History
      • Physical examination
      • Red flags
      • Interpretation of findings
    • Testing
    • Imaging
    • Treatment
      • Topical treatments
      • Hormonal treatment
      • Treatment reference
    • Key Points
  • Pseudofolliculitis Barbae
    • General references
    • Diagnosis
    • Treatment
MSD

Brought to you by Merck & Co, Inc., Rahway, NJ, USA (known as MSD outside the US and Canada) — dedicated to using leading-edge science to save and improve lives around the world. Learn more about the Merck Manuals and our commitment to Global Medical Knowledge.

  • About
  • Disclaimer
  • Permissions
  • Privacy
  • Cookie Preferences
  • Terms of use
  • Partnerships
  • Contact Us
  • Global Medical Knowledge
  • Veterinary Manual
  • Print Editions
  • Mobile App
  • follow us on facebook
This icon serves as a link to download the eSSENTIAL Accessibility assistive technology app for individuals with physical disabilities. It is featured as part of our commitment to diversity and inclusion. M
  • follow us on facebook
This icon serves as a link to download the eSSENTIAL Accessibility assistive technology app for individuals with physical disabilities. It is featured as part of our commitment to diversity and inclusion. M
MSD

Copyright© 2025Merck & Co., Inc., Rahway, NJ, USA and its affiliates. All rights reserved.