Androgenetic Alopecia

  • Masumi Inaba
  • Yoshikata Inaba


The term “androgenetic” was coined by Ludwig (1962), who combined the words “androgen” and “genetic”. In youth, the scalp is covered by thick pigmented terminal hair. Normally, all human beings become progressively balder. The course of androgenetic alopecia (A.a) is progressive in the middle decades of life; the transition into senile involution alopecia follows later in life. A major distinction between long-term normal balding and the condition known as is that the more advanced and obvious signs of pattern baldness appear at an earlier age.


Hair Loss Scalp Hair Alopecia Areata Root Sheath Body Hair 


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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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