Hair Regeneration

  • Masumi Inaba
  • Yoshikata Inaba


Complete replacement of all hairs on the human head with new hairs, through the hair cycle, takes about 5–7 years. The anagen stage lasts several years, the catagen a few weeks, and the telogen several months. Other hair cycles, such as those for the eyelash and the axilla, average 150 and 123 days, respectively (Fig. 7.1).


Hair Growth Sebaceous Gland Scalp Hair Dermal Papilla Anagen Stage 
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Copyright information

© Springer Japan 1996

Authors and Affiliations

  • Masumi Inaba
    • 1
  • Yoshikata Inaba
    • 2
    • 3
  1. 1.Department of Aesthetic Plastic SurgeryInaba ClinicSuginami-ku, Tokyo, 166Japan
  2. 2.Department of DermatologyThe Jikei University School of MedicineMinato-ku, Tokyo, 105Japan
  3. 3.Department of DermatologyInaba Aesthetic Plastic SurgerySuginami-ku, Tokyo, 166Japan

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